Hey world,
I'm having trouble with my Roger's branded Samsung Captivate SGH i-896's wifi. The phone is completely stock. When I connect to my wireless AP at home it doesn't seem to always work on the captivate... I had a htc magic before running all sorts of different roms and never had a problem like this before.
What happens is that I would connect to wifi at home and it would work, but if I leave wifi on the phone for an extended period of time and go back to the phone, wifi stops working.
It would show that i've successfully connected to my AP but no data would pass through my phone.
Disconnecting and reconnecting to the AP doesn't seem to work, the only way to fix it is to restart the phone. I'm not experiencing this problem with any of my laptops, netbooks or cellphones at home.
Security type is WPA2.
Is anyone else experiencing this problem? Anyone have an idea what could be causing this problem?
I have had this problem intermittently, So has my wife on her Captivate. No idea what causes it though. It's a pain because if WiFi is on, but not working, 3G doesn't kick in so apps just don't work.
my wife's captivate has this issue as well (but I don't on my captivate). It will work for a short period and then stop. We have a fios wifi router, not sure if that matters at all.
restarting the router and/or phone usually fixes the problem
mine is a linksys... hrnnn
I'm having the same problem on my new Captivate. Tried it on several different networks with the same results (shows connected but no data will transmit) before I took it back to ATT. They scratched their collective heads and rebooted (powered down and removed battery), which is a temporary fix, but its been working for two days now and I turn off WiFi unless I know I'm in range of a working hot spot.
I was having this same problem until I set my wifi policy to never sleep, dont know if it is a fix for everyone but it definitely fixed my problem.
Sent from my SAMSUNG-SGH-I897 using XDA App
Glad to hear I'm not alone!
I've been fighting with this issue for over a week now, it suddenly started occurring. I wonder if it was an app we all loaded that suddenly made this condition occur? If you look the phone is requesting an IP and if the IP given back by the router is the same one it already has the phone doesn't acknowledge that command. If the router is rebooted then a new IP is given, or what is considers new. This is a HUGE problem and I've put in some time looking at it, but one of the problems is that is comes and goes. What your router log and you'll the phone request an IP over and over again, all the while the router saying "here, take the same one you already have back".
If you use the app "Network Info II" you'll see the problem when it displays a "Device IP" at the top of 192.168.1.254 and WiFi IP address will be the correct one, in my case 192.168.1.108. When we have these two IP numbers showing differently the device is hosed. Rebooting will put them back in sync, but that is not the proper solution, we need to get to the bottom of this! I understand the WiFi IP address showing at the bottom but the "Device IP" I do not, why the difference? How can we affect the "Device IP", where does the device get that IP address?
Try the app called WiFi Fixer. That did the trick for me. There seems to be a bug of some sort that causes the phone to not release the IP address. Or you could use static IP but that worked only for a while.
Cheers.
Sent from my SAMSUNG-SGH-I897 using XDA App
the app doesn't seem to work for me.... =(
DKirk said:
How can we affect the "Device IP", where does the device get that IP address?
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Click to collapse
The phone gets the device IP from either the service provider (when using edge/3g), or from the router (when using wifi). If an IP address is not provided, it uses a default IP address, which is always outside of the standard private IP block.
There are two ways to assign an IP address: dynamically and via static IP address. Dynamic = assigned by the router, static = pre-programmed by you. I don't know if you can set a static IP address on a phone, as I've never tried it.
I had a zyxel wireless n router in my house and could never get the wifi to work on my captivate. If it did work it lasted 5 seconds... I was really pissed.
I was thrilled to see that buffalo is now back in the market and with dd-wrt firmwares... So I picked up the most expensive one they had for $89.99.
it has a dlna client built in as well as bit torrent, also lets you use a spare usb hard drive as a nas... things i don't know....
However loaded up the wireless settings in 2 minutes and voila... perfectly working on my captivate... I have also found that this router works flawlessly with G+N devices and it is gigabit. I was able to stream 1080p video from my synology 411+ to my ps3, download on the captivate and be on two other laptops at the same time without any issues... I am very very impressed with the buffalo.
Here is the product info.
buffalo nfiniti wireless n high power router and access point. WZR-HP-G300NH
ohh and my laptops are connected fully at 300 mbps with this router wirelessly...
very very happy with it.... Oh and forgot to mention... once this started working with the buffalo i noticed my batter was much better running on wifi all the time. Also wifi file explorer pro works flawlessly.. I was able to upload a 700 meg movie to my captivate wirelessly in about 2 minutes.
WiFi fixer did not fix my problem as well. After turning WiFi on the device IP remains 192.168.1.254 while the WiFi IP is correctly set at 192.168.1.108. When these two IPs are different WiFi does not work and WiFi Fixer doesn't appear to see any problems here.
The router here is an Asus RT-N16 running Tomato and I'm fairly confident that isn't the problem. This is more like an internal routing issue inside the phone.
I don't think it's brand of router that matters... maybe a setting on our routers can fix this...?
I've searched the internet to find a sol'n but it looks like this wifi problem is a widespread problem for almost all galaxy S devices... ppl have made temporary workarounds (ie. setting a static ip) but ultimately, there is no fix for this problem.... gg...
bigbrotherbear said:
I've searched the internet to find a sol'n but it looks like this wifi problem is a widespread problem for almost all galaxy S devices
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Click to collapse
It appears to go beyond Samsung Galaxy, I've seen the same issue with Nexus and Motorola Droids. VERY frustrating!
tylerdurdin said:
I was having this same problem until I set my wifi policy to never sleep, dont know if it is a fix for everyone but it definitely fixed my problem.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I dont know why nobody even notice that answer !!!!
had same problem on my milestone .. it is not a bug , wifi goes to sleep , its the way your phone is set up ... as its quoted here set it to never sleep and make sure your not using soem kind of app that will overwrite that setting ( like battery manager that for example could turn off wifi to save battery)
very easy to double check once your wifi is not working , go in wifi settings scan and check the wifi access points you normally use you ll see its set to disabled ..
the bug is it doesnt resume like it should. or gets re-enabled however you wanna call it . just re-enable it voila ! no reboot needed .
I got it working!!
This may be my first post here, so be kind...
Running Cognition v2.3b3 and Linksys WRT54G router. WIFI was working fine until I flashed to Cog 2.2 Then I could only use WIFI tethering, no other WIFI connection would work.
I tried setting up static IP and setting sleep to never. Didn't work. Changed router security from WEP to WPA Personal and got it working.
Phone settings: Go to Wi-Fi Settings, click menu, and goto advanced. I don't know if all the settings here are necessary, but I'll post what I have.
Port = 80
Use statis IP = checked
IP address = 192.168.1.103 (check your router assignments for an open address)
Gateway = 192.168.1.1
Netmask = 255.255.255.0
DNS 1 = (check your router config. For my router it's located under the Status, then router tabs.)
Router settings: (Under the Wireless, Wireless Security tab)
Security Mode = WPA Personal
WPA Algorithms = TKIP
WPA Shared Key = (your access key used when you attempt to athenticate from your phone)
Group Key Renewal = 3600 seconds
Write the access key down so you can use it to reconfigure the other wireless devices on your home network.
Good luck,
Glen
changing my router fixed the issue.
I have wifi running on my captivate for 8 hours at a time at work now and at home. Not one hiccup or disconnect, works 100%.
99% of wireless routers are crap. I work in IT and have dealt with most major brands and had been running linksys wireless routers with dd-wrt on them...
if you got a spare 90 bucks.. go to your microcenter or place where they sell buffalo routers and pick one up. If it doesn't work.. you can return it.
This worked for me
Going to a static IP worked for a few hours and then it stopped working as before. WiFi is set to not sleep.
When I ran the router without security I did not have this problem and since adding WPA2 w/AES+TKIP the problem has developed. The iPod Touch doesn't have a problem with it, nor my laptop or wireless ipTV set-top box, only the Android. I'm leaning towards setting up another router without security, on a different channel, and see if the problem disappears again. Here in 2010 we shouldn't be having this issue, but look on other forums and you'll find similar complaints with other brands of Android phones, it's not a Samsung thing.
Hey guys/gals, I have a problem with setting up the wifi on the tab 7.0 plus.
It sees my SSID - I enter in the password, it says obtaining IP - but is stays there never actually giving me an IP from my router. I get signal strength, etc. but I cant access the net.
So i decided to try to set a static IP, but that did not work either (but not sure I did this entirely correctly, so ...)
Any solutions? Whats the problem? it can be that hard....
Shftup said:
Hey guys/gals, I have a problem with setting up the wifi on the tab 7.0 plus.
It sees my SSID - I enter in the password, it says obtaining IP - but is stays there never actually giving me an IP from my router.
Any solutions? Whats the problem? it can be that hard....
Click to expand...
Click to collapse
The likely problem is that DHCP isn't running on your network (or isn't working.) DHCP is something that usually will run on your router and assigns IP numbers to devices that connect to it. It's also possible that DHCP is working fine, but you have MAC Address filtering enabled on your router (which basically limits which devices can attach to your network.)
Finally, it might simply be a router incompatibility (though I haven't seen that very often.)
As to how to resolve those things... I can't answer that... I don't have the same router you do (unless you just so happen to have a linksys E4200), so can't walk you through reconfiguring it.
Good luck
Gary
Had the same problem at the beginning when I unboxed my Tab for several times. After few resettings my router an Tab it finally started to work and since that moment couple of days without any issue. So don't know where was the problem..:-(
I also had DHCP issues upon unboxing the tablet. When it first powered up and tried to connect to my D-Link router, my Wi-Fi would go offline. All of my other connected devices would also go offline. After pondering this bizarre behavior for a few moments I decided to turn off the tablets wifi. The router and other devices magically came back online and connected.
After repeating this several times just to make sure I wasn't seeing things I assigned a static IP to the tablet. Everything worked fine after that.
What I think was happening there was that the tablet was trying to grab the router's IP address and that was knocking everything offline. This is just a guess though. Maybe someone with more network saavy than me has some thoughts?
thanks i will try these tonite and reply back.
My Tab is rooted, but I dont believe that matters, correct?
Yes it shouldn't matters...
So i played around, couldnt get DCHP to work for an IP. So i went back to creating a static IP - i missed 1 digit on DNS1 the first time which is why it didnt work last night. Once the static ip was up - boom.....magic. I called samsung support, they indicated that this is a know issue with some home routers (mine is a 2wire) and that a static IP is the solution.
thanks for all the tips above, much appreciated.
I have the new Galaxy Tab 2 7.0 student edition. It will not connect to my Uverse router. It sees it. I type in the password it shows "obtaining IP address" and then it says "network disabled, poor connection". It shows the signal as "strong" because I'm sitting in front of my router. I currently have my laptop, WDTV, Infinity, ipad, all connected to the same network, no issues ever getting on. The Tab will connect to my Epic's wireless hotspot if I activate that so I'm totally lost. Obviously that is not the connection I'd prefer to use when I'm at home. Anyone have any thoughts or suggestions? I don't know much about routers but I'm "in" mine, just don't know what to look for. TYIA.
The obtaing ip address seems like a problem which need manual configuration via advanced options
Do you use static ip or dns or so?
so long press the name of network after connected and you will find advanced and enter the required fields as ip, gateway, primary and secondary dns and those number ars entered once and saved to be used later
Sent from my GT-P5100 using xda app-developers app
Go to settings, then advanced then tap on avoid poor connections so it is unchecked, try it then. Still doesnt work, do what ^ did.
Btw if your running the latest 4.0.4 the wifi seems messed up, people have said it in the past. If this is the case go to 4.0.3 by flashing through odin (flash counter may go up) or just flash cm9/10.
Sent from my SGH-I997 using xda app-developers app
I had to reboot my router.
Go to adavnced on wifi options and turn off the don't use weak connections.
I have a Note 10.1 GT-N8000 running 4.0.4 but I cannot connect to our home network. We moved to PI but the note maintains the DHCP IP we used in Kuwait. I have done the following. Factory Rest, Hard Reset, statIc IP (but wont recognize), After changing the IP to static rebooted Statis IP remained. Shut down again then changed to DHCP again back to the old IP address. On the router reset, shut off,
I have another note same model no issue, an S3 No issue, A Galaxy Note1 no issue. laptop no issue. So I don't believe its the router. Any thoughts or ideas?
I am trying to connect my Samsung Galaxy Young GT-S6310n with my home Wifi (Access Point) but it doesn't connect with it. It saves the connection but couldn't connect with it.
I checked it with another Router (Access Point) on same network but it also didn't work.
Let me mention my network setup at home. I have ADSL 4 ports LAN modem. I have connected my personal Access Point (Wireless Router) "Motorola Netopia" with ADSL modem and configured it as Bridge. I turned on the DHCP Server on ADSL Modem and turned off it in my Access Point.
I did everything to fix this issue such as changing Encryption type, changing Channels, updating AP firmware and resetting Access Point but didn't fix it.
I also assigned a Static IP address to my phone but this also didn't fix this issue.
So can anyone tell me how to fix it?
Thanks