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School wifi problem

Just got my Samsung Captivate about a month and I got my wifi connected to the school network, but when i open the broswer or any apps need internet i didnt get any connections? at the first week it works.. and when connecting to the school wifi it should be come out with the school login page,, then the internet will work.. however the wifi is connected doesnt matter how strong the wifi singal is.. it just cant load and cant bring me to the login page..
I really need help..
and the wifi works everywhere.. except my school...
btw my friends iphone 3gs works..

I am also at college and have had the same problem. the best reason I have found is the phone itself. half of our wifi is an older standard that does not work on the phone. it shows up as wep and i can not get it to recognize it as 802.1x . in my tinkering I have also messed up the wifi that was working.
long story short it probably won't work. I have spent a long time trying to get it to work with no luck
Sent from my SAMSUNG-SGH-I897 using XDA App

Hello to both of you,
I also attend a college with an 802.1x connection and the captivate supports most of these networks; however you will probably need to configure the network settings manually (usually retrievable on your schools IT site). If you dont mind digging up your settings I would love to check to see if I can configure your phone.

FYI, you might be having a problem similar to what's seen in this post.
http://androidforums.com/captivate-support-troubleshooting/142397-odd-netmask-issues-wifi.html

I definitely had this problem today. It appeared connected but no web pages would load. Going to have to investigate further. Why can't things just work

I know my school recently implemented some new security certificates that you must agree to before logging in, has anything like that changed for you? My wife's Aria is running 2.2 and can log into the school network, but my captivate cannot. It is frustrating I know.

Seems some colleges and universities are noticing issues with android devices letting the DHCP leases to expire but keeps using the IP address assigned instead of requesting a new one.
See the following links.
h t t p ://www . natecarlson . com/2010/08/27/android-att-captivates-wifi-networking-is-broken/
h t t p ://www . net . princeton . edu/android/android-stops-renewing-lease-keeps-using-IP-address-11236.html
I actually have similar issues with my Belkin wireless router at home. My laptops and other wireless devices have no problems connecting or re-connecting but the Captivate just refuses to re-connect after the connection was terminated. Even after resetting the router, the phone just keeps trying to use the same IP address for some reason.
The only way I could get it to reconnect is to either reboot the phone or to remove the AP entry which is a pain especially if you have wireless passwords.
Hopefully someone with better insight into how Eclair and Froyo handles WiFi can come up with some fix.

more solutions?

I believe the new 2.2 firmware solves this issue. I too am at College and my captivate FAILS to actually access the internet through wifi unless I statically assigned the IP.
I just updated to Froyo and it connected instantly. I'll have to do more testing to make sure, but I think Samsung finally fixed it.

captivate wifi issue at school
i just got Galaxy S (Captivate) and wi-fi is giving trouble.
when i tried at a university campus, it gives error and says can't open and try again later. it is like, i get connected to the network, IP and DNS and everything is generated. But when i open browser to open a website, instead of taking me to login page it gives the above error.
here is what i get when i try to open a website.
'web page not available'. the page might be temporarily down or it may have been moved permanently to new address.
here are some suggestions:
- check to make sure device has signal and data connection. (I made sure it is connected to wifi)
- reload page later. (i tried after 5 mins, same result)
- view cached copy from google. (doesn't work either)
i am not able to understand why is this happening. i tried restarting the phone after connecting to wifi but no luck. any pointers?

Sounds like they use a portal system which requires logon and doesn't play nice with the Captivate's browser. Unfortunately many such portal systems are written poorly and I've even seen some that only work with Internet Explorer.
You could try a different browser on the Captivate. Dolphin allows spoofing assorted User Agents, which might help.

Hey guys, I have the same problem connecting to m school's network login page. It would say connected but the website always says cant be found. But the good news is that I found a way to connect to it manually! What you need is your captivate and friends iphone 4 or 3gs. First have use your friends iphone to connect to the wifi and then go into wifi settings. You should see 2 DNS address, Ip address, netmask (subnet mask) and router address. Now jot those addresses down except the ip address. Go to settings->wireless and network->Wi-Fi settings->now tap the bottom left button under the samsung logo and click advanced. Now check use static ip. Do not enter anything for your ip address just yet (we will do this last). Now enter router address into gateway, subnet mask into netmask, DNS1 to DNS1 and DNS2 to DNS2. ok when you are done click back and tap the network you want to connect to. Once you are connected jot down your ip address by taping the network once more. now go back to where the static ip was and input the ip address you just jot down into the ip address underneath use static ip. Disconnect and reconnect to the desired network. You may have to do this a few times or reboot your phone. This has been working for me so far around different buildings but with the same school network connection. I hope this helps cheers!

sremick said:
Sounds like they use a portal system which requires logon and doesn't play nice with the Captivate's browser. Unfortunately many such portal systems are written poorly and I've even seen some that only work with Internet Explorer.
You could try a different browser on the Captivate. Dolphin allows spoofing assorted User Agents, which might help.
Click to expand...
Click to collapse
Yeah, my school uses the Bradford dissovable agent. Funny thing is, some connections work perfectly, others not at all. Technically none should work, and sometimes I feel that maybe I should tell them that sometimes somehow it is possible to bypass the whole agent thing- but why rock the boat just yet

Does it need a proxy to work? If so, this app is amazing.
http://forum.xda-developers.com/showthread.php?t=766569

I figured it out a month ago, and it is actually petty easy. But you really have to change ip address manually, usually just the last number.
Sent from my SAMSUNG-SGH-I897 using XDA App

[Q] Sites Accessible via Wifi, Not Cellular (Intermittent)

Hi All, I have a question I'm hoping someone might be able to help me with.
I have a Nexus S i9020A running CM 7.0.2 on AT&T. I've noticed something strange lately and can't quite pinpoint the problem.
I'm running a server at my house with a no-ip address to access my tv show downloads. I'm able to access this from the browser (any browser) while connected to wireless (in my network, or out) but only intermittently while on cellular data. When it isn't working it simply keeps trying to connect until it times out. I haven't yet recognized a pattern of when it works vs when it doesn't.
I thought for a bit it might be a DNS issue, but even with the straight IP address it won't load. Funny thing is, I'm still able to SSH into my router using ConnectBot, so I know the address is correct and the phone can see it. Other apps like RDP won't work either while I'm having this issue.
It's not the end of the world, but it sure is annoying. I'd like for it to work whenever I need it. Any ideas?! I'm stumped.
Thanks everybody!
Tim

I know nothing about networking, just so you know. It sounds like you know much more. I will offer a guess. With some other phones than the ns, sprint has multimedia proxies set for when you are on their network. Streaming music works on wifi but not cell. Use the msl to get into settings, ##data# is the code for sprint phones, and I forget what they are called but there's two proxy addresses and ports that need to be zeroed out then reboot in order to get streaming to work. This is probably not a solution for you but I thought I'd offer something since nobody else has chimed in yet for suggestions.
RS something or another. The other setting is always right next to the first one and generally at the bottom of the list of settings. It could be in advanced or multimedia. Different places for different phones. It would be wise to write down the default addresses and ports before changing them in case it doesn't work or breaks something. It usually doesn't though.

Hey herb, thanks for the response. I see what you're saying, but I don't think it applies here. I know I made it sound like I was streaming or downloading music through the phone...my mistake. What I actually meant was that I'm accessing a web site running from my house to control my home machine downloading music. It's nothing complicated, I'm just sure I'm explaining it terribly.
But, essentially it's just a regular old web page. It's just very strange that it would work wireless and not over cellular. They do run on funky ports, so that they're blocking or redirecting some stuff is very possible. Annoying...

Got my GT7+ yesterday and have a couple questions. Brightness? WiFi?

Edit: This is the Galaxy Tab 7 Plus 4G w/ TMobile...
So far I am loving it. I have had a plethora of Android tablets, including the Galaxy Tab 10.1 (until yesterday), and the original 7" Tab. Here is an issue I have not run into thus far...
Issue 1: I like my brightness settings to be %100 all the time. I always (almost) have a power cable with me, so I'm not worried about the drain. I have the auto setting turned off as to keep it from adjusting on it's own. However, everytime I open the status menu with the brightness slider, it is down to about %90-%95. I can't get it to stay on full. Also, and even more annoying, every time I open the browser, the brightness drops to like %30'ish and I have to open the status menu and slide it back up. The browser is where I REALLY need the full brightness the most, and it's the biggest issue.
I noticed this out of the box, adjusted settings, nogo, so I factory reset, and same issue. This is leading me to believe this is just a setting or something I am missing. Any ideas?
Issue 2 (THE BIG ONE): This Tab 7+ can't see my work wifi. It connects to my wifi at home just fine (did last night at least), which is also WPA, but it doesn't even see the one at work. It acts like it isn't there. In fact, and this is probably important, it is not seeing any networks up here, and there are at least 10-15 that should be visible from my location in the building (all but a couple from other companies). My G2x (Android 2.3) is connected to my work wifi just fine, and it sees all the others around us, the the Tab 7+ right next to it sees none. I also turned on the wifi router on my phone, it will not see that one either. I've verified the wireless is enabled, as well as turning it off and on multiple times and many reboots, nogo... I need it to hit the wifi at work and home so it isn't sucking my 4G data, so this is a big issue for me.Any ideas? I'm at a loss...
Also, to answer before it's asked: Nope, it's not rooted. I may do this at some point (as I do most of my devices), but for the moment I want to leave it stock and not mess with it. These issues seem like they should be resolved/nonexistant in the stock ROM, so I shouldn't have to root to fix them. Please tell me if this is incorrect...
Thanks for any help, sorry for the long post...
(pardon typos, I'm at work and multitasking, no time to proofread)

on the brightness broweer tip. use a different browser. its a known issue that the stock browser automaticaly dims the screen.

otamctech said:
on the brightness broweer tip. use a different browser. its a known issue that the stock browser automaticaly dims the screen.
Click to expand...
Click to collapse
Thank you... You're right, it doesn't happen in Dolphin, however I am one of those weird people the really prefers the stock browser...
The biggest issue is the wifi not showing up. I am updating that issue with more info now...

what channel is the wireless network on? i had a similar problem on my windows laptop, it cannot see the wifi.. turned out that my wireless card(the driver actually) cannot see any wireless network beyond channel 12.. who knows you're having the same problem, might worth checking.

gingerboy92 said:
what channel is the wireless network on? i had a similar problem on my windows laptop, it cannot see the wifi.. turned out that my wireless card(the driver actually) cannot see any wireless network beyond channel 12.. who knows you're having the same problem, might worth checking.
Click to expand...
Click to collapse
Ours is on 6... Thanks though

for me it was the opposite, it could see my home wifi, but not my work.
only was to solve it was to setup a static ip at work for the GT7...
I called samsung, they said its a problem with some routers. No eta on fix other than static IP.

Shftup said:
for me it was the opposite, it could see my home wifi, but not my work.
only was to solve it was to setup a static ip at work for the GT7...
I called samsung, they said its a problem with some routers. No eta on fix other than static IP.
Click to expand...
Click to collapse
........

Just to chime in - I also have the same problem connecting to my work wireless network but I think because it uses a SEPARATE authentication scheme.
The way my office WLAN work is like this:
1). Connect to the WLAN with SSID "Office", no encryption password required
2). Once the Tab is connected, it WILL receive an IP address
3). Open up a browser (Dolphin, etc.) and try to go to any website (Google, etc.)
4). Instead of going to the website I typed in in no. 3, an authentication page will show up
5). I need to enter my Windows AD account and password
6). If its successful, then I can start browsing the Internet (but not going to the Internal network, that requires VPN access).
Step 3 is where the Tab FAILED to do so. It just doesn't want to get redirected to the authentication page.

lanwarrior said:
Just to chime in - I also have the same problem connecting to my work wireless network but I think because it uses a SEPARATE authentication scheme.
The way my office WLAN work is like this:
1). Connect to the WLAN with SSID "Office", no encryption password required
2). Once the Tab is connected, it WILL receive an IP address
3). Open up a browser (Dolphin, etc.) and try to go to any website (Google, etc.)
4). Instead of going to the website I typed in in no. 3, an authentication page will show up
5). I need to enter my Windows AD account and password
6). If its successful, then I can start browsing the Internet (but not going to the Internal network, that requires VPN access).
Step 3 is where the Tab FAILED to do so. It just doesn't want to get redirected to the authentication page.
Click to expand...
Click to collapse
Yep, same way for me at work. OP did you try to manually add the wireless info vs letting the tab "find" the access point?

lanwarrior said:
Just to chime in - I also have the same problem connecting to my work wireless network but I think because it uses a SEPARATE authentication scheme.
The way my office WLAN work is like this:
1). Connect to the WLAN with SSID "Office", no encryption password required
2). Once the Tab is connected, it WILL receive an IP address
3). Open up a browser (Dolphin, etc.) and try to go to any website (Google, etc.)
4). Instead of going to the website I typed in in no. 3, an authentication page will show up
5). I need to enter my Windows AD account and password
6). If its successful, then I can start browsing the Internet (but not going to the Internal network, that requires VPN access).
Step 3 is where the Tab FAILED to do so. It just doesn't want to get redirected to the authentication page.
Click to expand...
Click to collapse
One of the ones we have at work is the same, but not the one I primarily use. That is my backup lol...
otamctech said:
Yep, same way for me at work. OP did you try to manually add the wireless info vs letting the tab "find" the access point?
Click to expand...
Click to collapse
I did, nogo...
Also, here is a strange thing. About 2 hours ago it notified me there were wireless networks in range, and then showed me 2 random networks from another office. Suddenly, it saw nothing again. Then about 5 minutes ago, while I was in the bathroom ( ), it suddenly showed me ALL of the surrounding networks. Yay! I tried to connect to the one I use, it took my password, but never even attempted to connect. Then, they are gone. Now it doesn't see them.
What. The. Fuuuudge.

Need Help getting Into My Wifi

Okay so here's the dilema my dad changes the wifi password after we argue and I'd love I if I could find a way to get the password without him knowing.
I'm on an AT&T Samsung Galaxy S5 And i am rooted
I usually use his laptop when he's not around and get the password but that's not an option for the time being. Thanks in advance.
The Wifi Type is WPA2 PSK
The router is a Netgear
The modem is a Motorola
P.S. I do t have access to a computer but I do have physical access to the router and modem and I'm new to the forum please let me know if I posted this in the wrong g place.

See into wifi manager that the Router has (Wps Available)
Then there is a Solution for it...
Just Go near the Router and press the Wps Butten and Connect from mobile...
And you done
I tried many times...
Sorry for bad english

RxJunkie said:
Okay so here's the dilema my dad changes the wifi password after we argue and I'd love I if I could find a way to get the password without him knowing.
I'm on an AT&T Samsung Galaxy S5 And i am rooted
I usually use his laptop when he's not around and get the password but that's not an option for the time being. Thanks in advance.
The Wifi Type is WPA2 PSK
The router is a Netgear
The modem is a Motorola
P.S. I do t have access to a computer but I do have physical access to the router and modem and I'm new to the forum please let me know if I posted this in the wrong g place.
Click to expand...
Click to collapse
Take his laptop or his computer and click on the network icon on windows and then check the password an now you will know the password,

psycho1200 said:
Take his laptop or his computer and click on the network icon on windows and then check the password an now you will know the password,
Click to expand...
Click to collapse
eh he stated that using his laptop was not an option for the time being
I just assume that you have multiple computers at home that are connected to your network. I've come across some programs that I used to recover our network password when I was younger, all you need is a usb drive and those programs. I believe the site was called nirsoft or something .
!!Those programs may be identified as viruses as!!

Xpid3r said:
See into wifi manager that the Router has (Wps Available)
Then there is a Solution for it...
Just Go near the Router and press the Wps Butten and Connect from mobile...
And you done
Click to expand...
Click to collapse
If your router DOES have WPS, then this is a good quick and clean call and should be sure to remember to click "thanks" on Xpid3r's post.
If it DOES NOT have it, then give us a little more info:
1.)when he changes it, who and what does he update other than his laptop? - sometimes people are easier to bride, sweet talk, or otherwise crack than devices... Would mom, brother, roommate, friend etc. get the updated password? If not, what other devices get updated? anywhere the password is saved is a potential entry point. For example, if YOU were keeping the password from HIM... Then he could get it from your galaxy s5 NOTE:I can't post a link, because I'm new here. But if you google "recover wifi password from android" there is a walktrough from hubpages that I've used
2.)Could you borrow a friend's laptop to hack the password? - If so, there are plenty of tutorials around for that (though admittedly that is not a SHORT learning curve)
3.)How visible is the router? I rented a room once and shared Wifi was supposed to be included in the rent. The landlord was a real tool though and, among other issues, he wouldn't tell me the router password so I could do some port-forwarding etc. It got annoying very fast. But he had his router hidden away for aesthetics. So I connected my own router (from my last place) to one of his router's wired ports and then had my own wireless network through the house with its own SSID. I lived there 4 more months and he never noticed it. If your dad's router is tucked away you could probably do the same. Or if you cannot access his laptop BECAUSE he is out of town, then it wouldn't have to be hidden. You could do that type of setup in plain sight temporarily and just take it down before he comes home and get the password from his laptop then. (Tip: if you do this disable DHCP server or YOUR router so they don't fight over who gets to assign IP addresses)
Good luck to you. Let us know how it turns out

Reset the router.

rbeavers said:
Reset the router.
Click to expand...
Click to collapse
He says without knowing his Father... :sly:

Sounds like a job for dsploit

RxJunkie said:
Okay so here's the dilema my dad changes the wifi password after we argue and I'd love I if I could find a way to get the password without him knowing.
I'm on an AT&T Samsung Galaxy S5 And i am rooted
I usually use his laptop when he's not around and get the password but that's not an option for the time being. Thanks in advance.
The Wifi Type is WPA2 PSK
The router is a Netgear
The modem is a Motorola
P.S. I do t have access to a computer but I do have physical access to the router and modem and I'm new to the forum please let me know if I posted this in the wrong g place.
Click to expand...
Click to collapse
you can find the password in options of wireless networks in the father's computer. Do it when the father goes to the toilet or eat , it only takes 1 minute

WiFi?

Hi,
Why am I getting this notification for the 1st time in approx 2 months that have got a OPO, despite that am connected to WiFi?
Hoping to hear from you experts.
Thanks.

This sort of thing normally pops up when the WiFi network wants you to go to some sort of page, this is usually for a login to free WiFi hotspots, I assume this Dlink is your WiFi? Perhaps it wants you to open this page to change a configuration or login. This doesn't seem to be Android related at all but more to do with your router, could you try tapping on the notification and screenshot the page it opens, if any.

He's right. This looks like a router setting that you might have turned on like guest mode.

oscarandjo said:
This sort of thing normally pops up when the WiFi network wants you to go to some sort of page, this is usually for a login to free WiFi hotspots, I assume this Dlink is your WiFi? Perhaps it wants you to open this page to change a configuration or login. This doesn't seem to be Android related at all but more to do with your router, could you try tapping on the notification and screenshot the page it opens, if any.
Click to expand...
Click to collapse
Thanks for replying, appreciate your expert views.
DLink is my WiFi and not a hotspot WiFi, never occurred earlier.
When I tap on it, G chrome takes me to 173.194.35.96/generate _204
Google results of this IP......173.194.35.96 which is Spy-IP.com
and Google has different results for this 173.194.35.96/generate _204
It never happened earlier in the past 2 months.
Been using the same OPO and same WiFi.
Any solutions to resolve it?
Thanks again and Best regards!

kokocabana said:
He's right. This looks like a router setting that you might have turned on like guest mode.
Click to expand...
Click to collapse
Like WPS or WiFi ON/OFF on the router?

Micheal1122 said:
Thanks for replying, appreciate your expert views.
DLink is my WiFi and not a hotspot WiFi, never occurred earlier.
When I tap on it, G chrome takes me to 173.194.35.96/generate _204
Google results of this IP......173.194.35.96 which is Spy-IP.com
and Google has different results for this 173.194.35.96/generate _204
It never happened earlier in the past 2 months.
Been using the same OPO and same WiFi.
Any solutions to resolve it?
Thanks again and Best regards!
Click to expand...
Click to collapse
This is a router setting then, that page is some sort of login. Perhaps guest mode has been enabled on your router? Try this:
Settings>Wi-Fi>Modify Network>Show advanced options> Change DHCP to Static. Here, find the box that says Gateway and note the IP here. Now change Static back to DHCP and close this menu.
Go into the browser on your OPO and put in this Gateway IP, this will take you to the router config. The login for this is usually on the bottom of the router, otherwise the default can be found by searching the router model number, try finding a guest mode setting and turning it off - I really don't know... You can also change your WiFi name and password here if you like
I can't really help you any more than that.

oscarandjo said:
This is a router setting then, that page is some sort of login. Perhaps guest mode has been enabled on your router? Try this:
Settings>Wi-Fi>Modify Network>Show advanced options> Change DHCP to Static. Here, find the box that says Gateway and note the IP here. Now change Static back to DHCP and close this menu.
Go into the browser on your OPO and put in this Gateway IP, this will take you to the router config. The login for this is usually on the bottom of the router, otherwise the default can be found by searching the router model number, try finding a guest mode setting and turning it off - I really don't know... You can also change your WiFi name and password here if you like
I can't really help you any more than that.
Click to expand...
Click to collapse
Thanks for all your expert assistance, now you have given me options shall resolve it.
and keep you updated.
Best regards!
Btw factory reset reflash could help too?

Another strange thing all internet/WiFi related apps work fine including G Chrome and Mail in it but no GMail..........

Micheal1122 said:
Thanks for all your expert assistance, now you have given me options shall resolve it.
and keep you updated.
Best regards!
Btw factory reset reflash could help too?
Click to expand...
Click to collapse
Glad to hear, I am strongly advising against the factory restore. This is a feature of Android, although it is strange for it to be happening in this circumstance there is nothing it will achieve.

oscarandjo said:
Glad to hear, I am strongly advising against the factory restore. This is a feature of Android, although it is strange for it to be happening in this circumstance there is nothing it will achieve.
Click to expand...
Click to collapse
1. Changed router's password.
2. Guests mode is Off.
3. All apps working with WiFi except GMail and GPS.
4. Still see the notification.
5. Should WPS be Enabled, it is disabled at the moment?
6. You don't recommend a factory reset what about a re flash of 30 OR?
Thanks.

Your phone is working fine, it seems you have triggered some sort of bug in Android's WIFI login detection.
The system works by accessing DNS and check if the resulting IP is owned by google.com or some network-internal redirection/replacement by a login page.
Now, the IP 173.194.35.96 is owned by Google, so the DNS lookup obviously worked perfectly but for some reason the phone gets an unexpected answer from that server. Which makes me guess to one of the 2 following options:
a) one of the computers in your network is infected and Google keeps showing the "Prove you're human" captcha window on requests.
b) your provider is replacing failed DNS lookups with it's own "helper" page which for some reason is making Android trip. If possible, change the DNS servers in your router to either OpenDNS or Google DNS.
Micheal1122 said:
5. Should WPS be Enabled, it is disabled at the moment?
Click to expand...
Click to collapse
That's entirely your choice. However I would only recommend enabling it if it's the "Push to WPS" method and not constantly on - WPS is broken and depending on your router it takes between 1 to 10'000 attempts (1 second to ~ 2 hours) to break into your WIFI. Not good!

d4fseeker said:
Your phone is working fine, it seems you have triggered some sort of bug in Android's WIFI login detection.
The system works by accessing DNS and check if the resulting IP is owned by google.com or some network-internal redirection/replacement by a login page.
Now, the IP 173.194.35.96 is owned by Google, so the DNS lookup obviously worked perfectly but for some reason the phone gets an unexpected answer from that server. Which makes me guess to one of the 2 following options:
a) one of the computers in your network is infected and Google keeps showing the "Prove you're human" captcha window on requests.
b) your provider is replacing failed DNS lookups with it's own "helper" page which for some reason is making Android trip. If possible, change the DNS servers in your router to either OpenDNS or Google DNS.
That's entirely your choice. However I would only recommend enabling it if it's the "Push to WPS" method and not constantly on - WPS is broken and depending on your router it takes between 1 to 10'000 attempts (1 second to ~ 2 hours) to break into your WIFI. Not good!
Click to expand...
Click to collapse
Thanks issue resolved.

Thanks issues resolved.

Thanks issue resolved.

oscarandjo said:
Go into the browser on your OPO and put in this Gateway IP, this will take you to the router config.
Click to expand...
Click to collapse
This resolved the issue.
Thanks again.