Related
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?
Click to expand...
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
Click to expand...
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.
While everywhere I go I can get a wifi internet connection, when I try at home I connect to wifi but I cannot get any data connection! My router is fine because all my friends use it to connect on the net with their phones.
Any ideas anybody?
A possibility
There are some cases where the router is not compatible wit Android devices and allows them to connect properly onto the wifi network, but not getting the proper IP, subnet and so on. Have you tried to manually enter these details into the phone and try out if there will be any Internet access afterwards or not.
In some other cases, maybe the DHCP pool is empty so it can not provide you with an IP, where manually entering the IP details should again help. But I think this is very rare case. About the first case though, I met some issues with the routers and the Android devices.
Hope this will solve the prob..
Have a lovely day!
Did you try rebooting your router? This happend to me sometimes too, my laptop can connect just fine but not my phone & a router reset always fixes it.
I have tried to manually enter the IP address, subnet and so on into the phone but still I cannot get an internet connection! I have also rebooted my linksys rooter but still nothing!
Log into your router and change the output channel. Sometimes if the router is putting out on a high channel say 13 for example this can cause some devices to not be able to communicate with it. So try changing it to a low number say 3. This should solve the problem.
kabuk1 said:
Did you try rebooting your router? This happend to me sometimes too, my laptop can connect just fine but not my phone & a router reset always fixes it.
Click to expand...
Click to collapse
This is more than likely because your router is set up to automatically switch to the channel that is the least congested, again if this is a high channel this can cause problems for some devices. What you are doing when you turn it off and on again is resetting the channel. I recommend you also manually select the channel by logging into you router and changing the settings.
I changed manually the router number several times but still no connection!
This issue is due to WIFI encryption. Try WEP or WPA encryption. I was facing the same issue. When i changed the encryption to WPA I am able to access the net.
uttamhoode said:
This issue is due to WIFI encryption. Try WEP or WPA encryption. I was facing the same issue. When i changed the encryption to WPA I am able to access the net.
Click to expand...
Click to collapse
Yes, it might be encryption, might be the channel selection as well as previously stated.
The thing with the channels is not only if they are on higher or lower, but they are just a little hops on the frequency side so for example if some other device is working on the same or close to yours channel, it might interfere and give you disconnections from the wifi, slower speed, no connection at all etc. etc.. So in some case the channel selection (changing the wifi channel) may do the trick. Unfortunately in your case as I can understand this is not true.
About the encryption, there is also one more thing as a security and that is not allowing the devices automatically, but with it's MAC addresses.
I would recommend just for testing purposes to try and disable all the security and check out the connection that way.
What sort of IP details did you entered on the phone? I mean - I was thinking of entering an IP different from the pool, subnet usually 255.255.255.0 (depends) and the Default Gateway to be the router's IP. Then for the DNS if you can try with the OpenDNS and one from Google.
And if you would like to share some info if there are any other devices connecting with the wifi at the premises and how they are working.
Hopefully you will resolve the issue, soon!
Have a lovely day!
bump
having same issues ever since I flashed latest insertcoin ROM
I tried the 2.3.5 ROM and was having issues connecting to wifi, so I went to the 2.3.4 SSE, but wifi issues did not clear up. It hangs on obtaining IP.
This happens for all settings, static and dynamic, router reset did not help, modifying channels did nothing, neither did changing encryption settings. The wifi connection works for every other device in our home, including a stock Sensation.
Thanks in advance for any help. Since I'm a noob on forums I can't post to the dev section about this.
syuusuke said:
bump
having same issues ever since I flashed latest insertcoin ROM
I tried the 2.3.5 ROM and was having issues connecting to wifi, so I went to the 2.3.4 SSE, but wifi issues did not clear up. It hangs on obtaining IP.
This happens for all settings, static and dynamic, router reset did not help, modifying channels did nothing, neither did changing encryption settings. The wifi connection works for every other device in our home, including a stock Sensation.
Thanks in advance for any help. Since I'm a noob on forums I can't post to the dev section about this.
Click to expand...
Click to collapse
Hi, since the stock sensation is working properly, why don't you flash the relevant stock rom and see if that works, seems like all else failed
Hey guys, I have an LG p500 and I use custom roms. Currently using CM 6.5.7 (2.3.5) and randomly I got this. It says my wireless is disabled. I am unable to include a photo as I am new to the forums. But basically it shows my wireless name and "disabled, secured by blah blah". I've tried forgetting the network, still same problem. Reflashed and wiped cache and dalvik.
I am unable to connect to my wireless, it just says disabled. This randomly happened, and wifi was working fine for 6 months, It worked fine on 6.5.7 but just randomly said that. I can connect all other wireless devices to the router, so whats the problem
1nf3rn0x said:
I've tried forgetting the network, still same problem.
Click to expand...
Click to collapse
'Forget' all the networks until you no longer have 'Not in range' networks. Maybe reboot your phone and try connecting again. It should work.
Nope, didn't do it.
Still says the same thing.
I experienced a similar problem with my home network (with the same rom) and solved by introducing manually the IP adress, gateway, netmask & the DNS. (got them easily by looking at the properties of my wireless network from a laptop and choosing an IP address within the range supported by my router). Now my phone is always connected using this configuration, but it only works optimally with the network for which settings are valid.
Might be a ROM bug. someone alerted to mik about this bug to fix it?
I have the same problem too. My WiFi randomly stopped working and when I turn the WiFi on it says "connecting" and then "disconnected". When I try to scan for more it doesn't do anything. I am also using the Cyanogen Mod as well.
The problem is probably that usb debugging is turned on. Try turning it off.
explain me pls
xsam123 said:
I experienced a similar problem with my home network (with the same rom) and solved by introducing manually the IP adress, gateway, netmask & the DNS. (got them easily by looking at the properties of my wireless network from a laptop and choosing an IP address within the range supported by my router). Now my phone is always connected using this configuration, but it only works optimally with the network for which settings are valid.
Might be a ROM bug. someone alerted to mik about this bug to fix it?
Click to expand...
Click to collapse
(got them easily by looking at the properties of my wireless network from a laptop and choosing an IP address within the range supported by my router) how i should do this can explain me i have win 7
Hi guys!
I have an issue with bluetooth tethering between two android phones:
A-Oneplus One cm12.1 latest nightly
B-Xperia SP cm11 latest stable release
Bluetooth tethering is activated on A, and paired up with B. Then I activate the "use internet access" option on the bluetooth pairing settings. Then when I try to access the internet on B, I get a "could not find server" error. It is not a dns issue as the problem is the same when using ip addresses.
I tried to isolate the faulty phone with two scenarios:
I connected a friend's phone running kitkat to A: internet worked fine, which led me thinking that A was sharing its connection correctly and thus B was at fault. But then I connected B to my friend's phone in bluetooth tethering mode: internet worked fine, so B can receive bluetooth tethering internet correctly...
Could it be that lollipop phones have trouble sharing bluetooth internet to kitkat phones? Seems a bit fishy to me...
Is there a command line tool (like pand on old cyanogen phones) to manually configure A or B?
Any ideas? Thank you!
Update:
I ran a netfcg on B: it showed that bt-pan didnt have any Ip address assigned.
So i did
netcfg bt-pan dhcp
ip route add default via 192.168.44.1 (A's ip address).
Now i can ping any internet IP, but I cannot ping web addresses. How do I set the correct dns in this case?
Thanks!
This post solved my problem.
forum.xda-developers.com/showthread.php?t=2043744&page=18
At first a reboot of the phone worked, but later I found that if I rebooted the router the codes would come through but not the previous sent codes, only newly made 2FA code requests. I have a Netgear 6300R2 Router with a second router, Netgear R6300V1, as an extended wifi only router wired together with Ethernet. I have multiple phones that have no problems with 2FA codes, only the new phone Ulefone Note 11P, which is the only phone running Android 11. This phone also has the problem of the new standard for Mac Address assignment as automatic. Since I made the home network use Mac address as the requirement for access to WIFI and assigns a static IP address to each device and has 20 addresses in the router setup. The only way I could get this phone to work on this network was to have one IP slot in the 20 not defined in the DHCP IP address list. So, for the life of me I can not find or do not know how to ask the internet for any info on this type of problem since many phones are running Android 10. Most people probably have newer equipment than I do so the problem is not showing up yet, but I imagine it will when all the Internet security is using Mac addresses to secure the network from unknown devices, an issue that has come up many times. So, if you could point me to some better router software I could load on the routers to handle the Mac addressing problems and have the right protocols built in for 2FA (2-factor authentication) I would try that. It must be a combined problem with Android 11 Wifi settings and router setting for it to work this way. After rebooting the router and receive code all day, the next morning the codes fail to show again, and I reboot the router again. Also, I am in the habit of using Airplane Mode or turning off data and WIFI overnight to prevent access from all those data hungry PUPs connected to the phone over the internet. Thank You for your help. The routers are updated with the latest Netgear software.
bmaz121 said:
At first a reboot of the phone worked, but later I found that if I rebooted the router the codes would come through but not the previous sent codes, only newly made 2FA code requests. I have a Netgear 6300R2 Router with a second router, Netgear R6300V1, as an extended wifi only router wired together with Ethernet. I have multiple phones that have no problems with 2FA codes, only the new phone Ulefone Note 11P, which is the only phone running Android 11. This phone also has the problem of the new standard for Mac Address assignment as automatic. Since I made the home network use Mac address as the requirement for access to WIFI and assigns a static IP address to each device and has 20 addresses in the router setup. The only way I could get this phone to work on this network was to have one IP slot in the 20 not defined in the DHCP IP address list. So, for the life of me I can not find or do not know how to ask the internet for any info on this type of problem since many phones are running Android 10. Most people probably have newer equipment than I do so the problem is not showing up yet, but I imagine it will when all the Internet security is using Mac addresses to secure the network from unknown devices, an issue that has come up many times. So, if you could point me to some better router software I could load on the routers to handle the Mac addressing problems and have the right protocols built in for 2FA (2-factor authentication) I would try that. It must be a combined problem with Android 11 Wifi settings and router setting for it to work this way. After rebooting the router and receive code all day, the next morning the codes fail to show again, and I reboot the router again. Also, I am in the habit of using Airplane Mode or turning off data and WIFI overnight to prevent access from all those data hungry PUPs connected to the phone over the internet. Thank You for your help. The routers are updated with the latest Netgear software.
Click to expand...
Click to collapse
For the DHCP/IP problem I know very little to help your issue. Other alternatives you can try is alternative Software for your router instead of the one from Netgear. I have found just from a quick search Openwrt and DD-wrt, both of which are linux based and have their own limitations.
As for the Openwrt build/s, WIFI only works in 802.11g, but 802.1an/ac work only with limited functionality or not at all. That may not seem so important considering you would only use it for the WAN/LAN ports.
As for DD-wrt, your best bet is to skim through their forum posts to figure out what works and what doesn't. (DD-wrt contains non-FOSS drivers from Broadcom, which they don't release to public, so better compatibility in general)
You can always use another wifi extender in your combo (or stick with it, if that's not the issue).
Best of luck in solving your problems.
Slim K said:
For the DHCP/IP problem I know very little to help your issue. Other alternatives you can try is alternative Software for your router instead of the one from Netgear. I have found just from a quick search Openwrt and DD-wrt, both of which are linux based and have their own limitations.
As for the Openwrt build/s, WIFI only works in 802.11g, but 802.1an/ac work only with limited functionality or not at all. That may not seem so important considering you would only use it for the WAN/LAN ports.
As for DD-wrt, your best bet is to skim through their forum posts to figure out what works and what doesn't. (DD-wrt contains non-FOSS drivers from Broadcom, which they don't release to public, so better compatibility in general)
You can always use another wifi extender in your combo (or stick with it, if that's not the issue).
Best of luck in solving your problems.
Click to expand...
Click to collapse
Thanks for that, great idea! What I find though, with Extenders, is that they require you to have your base station WIFI on 24/7 where my set-up the base, which is right next to me, is off and the 2nd router is WIFI on. This keeps me from being 2.4 or 5.0 waves passing through my body.
bmaz121 said:
At first a reboot of the phone worked, but later I found that if I rebooted the router the codes would come through but not the previous sent codes, only newly made 2FA code requests. I have a Netgear 6300R2 Router with a second router, Netgear R6300V1, as an extended wifi only router wired together with Ethernet. I have multiple phones that have no problems with 2FA codes, only the new phone Ulefone Note 11P, which is the only phone running Android 11. This phone also has the problem of the new standard for Mac Address assignment as automatic. Since I made the home network use Mac address as the requirement for access to WIFI and assigns a static IP address to each device and has 20 addresses in the router setup. The only way I could get this phone to work on this network was to have one IP slot in the 20 not defined in the DHCP IP address list. So, for the life of me I can not find or do not know how to ask the internet for any info on this type of problem since many phones are running Android 10. Most people probably have newer equipment than I do so the problem is not showing up yet, but I imagine it will when all the Internet security is using Mac addresses to secure the network from unknown devices, an issue that has come up many times. So, if you could point me to some better router software I could load on the routers to handle the Mac addressing problems and have the right protocols built in for 2FA (2-factor authentication) I would try that. It must be a combined problem with Android 11 Wifi settings and router setting for it to work this way. After rebooting the router and receive code all day, the next morning the codes fail to show again, and I reboot the router again. Also, I am in the habit of using Airplane Mode or turning off data and WIFI overnight to prevent access from all those data hungry PUPs connected to the phone over the internet. Thank You for your help. The routers are updated with the latest Netgear software.
Click to expand...
Click to collapse
Update: 9-26-21 3:31PM PST I did some reading on different Qos settings and can see a potential problem, so I unchecked Qos completely. All the 2FA codes are coming through now. I have to wait another day before being sure, but I think that may have been the problem. It also had a problem logging on to WIFI which had that too. So, my question now is, What does Qos have to do with 2FA codes coming through. The codes are no normal MMS messages so is it the software in the router being old and not knowing about 2FA protocols with Qos or what?
Also, I had a heck of a time logging in to the site, and after I did, I had to reload the site in order to see my post which took too long to find. Where is the "See your Post Button"?