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WiFi data transfer problem

I have a ZyXEL P-2602HW-D1A Wireless router. I have tried all combinations of security, even NO SECURITY WHATSOEVER, and still the device won't transfer data.
Not working;
Firmware: 1.5, Build: CR817
Wifi Router: ZyXEL P-2602HW-D1A
Security: Tried All; WPA2, WPA, WEP & None.
Problem: Connect under all conditions but no data is sent
Please help.

Have you tried another WiFi access point to check the devices WiFi module actually functions?

No, I haven't tried that yet, but don't really see the point... I've connected effortlessly to the same WiFi network with my HTC Touch Diamond.
jbelman said:
Have you tried another WiFi access point to check the devices WiFi module actually functions?
Click to expand...
Click to collapse

For some reason my N800 wouldn't connect to MY ZyXEL P-2602HW-D1A unless I set the device (N800) to disable any kind of wifi powersaving features it had.
On another note, how did you get your hands on the device so early? I'm guessing you are using a Cybercity internet connection? (I'm in copenhagen myself)
edit: I actually came to that solution when i noticed I could connect to OTHER accespoints, but not the Zyxel ones.

Same problem here in France with a Freebox as router

I've noticed under the router's WLAN client list that the device does not have a "Host Name". Would that present a problem?
It is assigned an IP address by the router without any problems, though.
Also the device seems to lose connection and reconnect constantly (every 5-10 seconds).
I done some digging around in the router settings and found an "AnyIP" feature. Would that possibly help?

There are a number of issues floating around. Support for WPA2 seems iffy and some people can just change to WPA or WEP and all work fine.
There are however a number of people (such as me) who can get a connection perfectly, it shows connection OK, they get an IP from the DHCP server etc, they can even browse a page for a few seconds... but after that no data is sent and everything times out. This is happening on any security from none through to WPA2.
I have seen no solution to this anywhere and believe me I have looked. Some people have given up and got a new router, but this is not a solution.
Can someone confirm that this has been recognised as a fault with the magic and is being investigated, rather then assuming it's a user or router error. There are far too many instances of this across many brands of router for it not to be an issue with the HTC Magic.

zyborg said:
No, I haven't tried that yet, but don't really see the point... I've connected effortlessly to the same WiFi network with my HTC Touch Diamond.
Click to expand...
Click to collapse
What I mean is have you tested the device on ANY other AP except the ZyXEL?

No, but since I'm by far the only one having this issue (try searching the web; see my last post), I didn't feel it was necessary. Just want some input from xda-dev that might solve the problem, if any.
jbelman said:
What I mean is have you tested the device on ANY other AP except the ZyXEL?
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Click to collapse

I've had exactly the same problem earlier with the N800 on the zyxel. Exactly how you describe it.
Did you find out if you could turn off any powersaving features on the HTC?

same problem here
in france with a freebox
I don't exaclty know what router is in the box
but I have excalty the same
I set on never the wifi sleep(powersaving) mode.
i found it in setting wifi menu button then advanced and "never"
but the problem is still here

zyborg said:
There are however a number of people (such as me) who can get a connection perfectly, it shows connection OK, they get an IP from the DHCP server etc, they can even browse a page for a few seconds... but after that no data is sent and everything times out. This is happening on any security from none through to WPA2.
Click to expand...
Click to collapse
I have the exact same problem on mine. I just hope it is not a hardware issue...

Could be DHCP lease time problem. Did anyone of you tried to set up Magic with Static IP?

Yes, I tried that also - didn't help one bit.
TheRookie said:
Could be DHCP lease time problem. Did anyone of you tried to set up Magic with Static IP?
Click to expand...
Click to collapse

I also have this problem. Im in Denmark with a Zyxel P660HW-p1.

Another user of Cybercity in Denmark with the same problem.
ZyXEL P-660HW-D1
The android is the only device that doesn't work. I have tried with Iphone and laptops.
I've tried to change the settings on the router to no avail.
Enable 802.11g+ mode [on/off]
RTS/CTS Threshold [2432/4096]
RTS/CTS Threshold [2432/4096]
Max. Frame Burst [600/1800]
The device shows up in the device list with no hostname, the HTC Magic gets the right ip address (using the program WhatIsMyIp to view it)

I had the same problem before, when I set my TP-LINK draft N router with WEP security my HD can see it, connect to it (but speed was slow tho), and my HTC Magic just keep saying its not in range. However, when I set it to open security it works, so I recognise its probably the security setting... so I changed that to WPA2 and then it works.
In my case, I see different device have different tolerance to some settings (in my case, draft N + WEP is OK with laptop, HTC HD, but not Magic), so its still worthwhile to try a few different settings, and try a public wireless access point also to double confirm?

Power save?
I have Zyxel (P-2602R-D1A) router.
I had exactly the same problem with my HTC Vox (winmo)... but that was solved by boosting the WiFi in the phone.
WiFi -> Best performance
So Im guessing magic is in some WiFi "power save" mode...
I dont know how this works, but I thought maybe you could change some WiFi settings behind the hood - that is if the hardware is capable of it.

Zyxel (P-2602R-D1A) router
I am having the same issue with this router as the other posters. The phone connects perfectly and reports an excellent signal, but barely sends or receives any data. I have used a terminal emulator to ping the router and it reports an 82% packet loss. This must be a big problem for many Danish users as it is the standard wifi router provided by two of the major ISP's.

same issue here with my vodafone uk magic.
wifi connects and i can browse for a few seconds then get a connection error and can't browse until i re-start wifi on the magic...
i've actually given up using wifi at home now due to this.
router is a talktalk supplied Huawei Echolife HG520b using 128 bit WEP
i can connect fine via wifi at the office so i don't think it's an issue with the handset, just with certain routers or router configs...
this issue has been reported on the vodafone uk forums but as yet no solution.
http://forum.vodafone.co.uk/index.php?showtopic=31937

[Q] Wifi or router issue

I'm having a strange problem. Before I brought home my Iconia, my router (Netgear 3600) had been stable and running without crashes or a restart for months.
Now, if I leave my tablet in sleep mode, I return to find that although the tablet says it is still connected there is no Internet connection. Also, my other wifi devices are offline too. I have to restart my router to get a connection again.
Is it possible that my Iconia could be crashing my router?

bhageman said:
I'm having a strange problem. Before I brought home my Iconia, my router (Netgear 3600) had been stable and running without crashes or a restart for months.
Now, if I leave my tablet in sleep mode, I return to find that although the tablet says it is still connected there is no Internet connection. Also, my other wifi devices are offline too. I have to restart my router to get a connection again.
Is it possible that my Iconia could be crashing my router?
Click to expand...
Click to collapse
I'm not saying it is, but it MIGHT be a coincidence.
There's not much a wifi client can do to to crash a router afaik. If your router doesn't like dlna/upnp then I suppose that could cause it to whack out, or if there are too many wifi clients on it...but I can't think of anything else.

What's the exact model of netgear? WNDR? DGN? Also, are you still connected locally? Can you ping the router but just can't get to the net? What about a wired connection? If you can get to the router with a wired connection, login to it's admin page and see if you see any errors. Also check for a firmware upgrade on the router.

With my old linksys router I had similar problems. Turns out that you can overwhelm it with connections and when it runs out of resources it's routing is jammed. Maybe you have some app on the a500 that creates too many connections and if your router is on the edge (e.g. your other computers are running torrent software) it might crash.
Or it could be a totally different problem .
Sent from my Desire HD using XDA App

Resolved, I think...
Thanks for your feedback!
It is Netgear wndr3700v1. The problem appears to be resolved by upgrading to the latest firmware (which has caused other problems, but resolved this one).
Although I've usually found Netgear to be reliable, they really dropped the ball on the 3700 routers. My four-year-old modem was more reliable and as fast. Unfortunately, I gave it away before I discovered all of the issues with the Netgear unit...

Neoprimal said:
There's not much a wifi client can do to to crash a router afaik.
Click to expand...
Click to collapse
Tell that to my combo DSL modem / wireless / router I had before I got a Wii. As soon as the Wii was installed the router would do EXACTLY what the OP describes. I ran with the Wii unplugged for a week and it never crashed. Within 2 hours of connecting the Wii back to the wireless it would crash the router.
I disabled the wireless on the router and replaced with a commercial grade D-Link and had no more problems.

Wifi obtaining ip address....

My Wifi connected to my home router perfectly until I flashed the custom rom.
Now it wont work. the phone recognizes my network, then tries to connect but it pauses at the obtaining ip address bit and doesn't connect?
I tried to restart the router. It doesn't work.
I tried to reflash the rom or offical rom (KE7). It doesn't work.
I also tried to delete the file /data/misc/dhcp/dhcp_list, but there are no "dhcp_list" file inside 'dhcp'
Do anyone have another way to solve this problem?
Thanks

Could be a problem with the router, are other devices able to acquire IP addresses from it correctly?
Perhaps you should assign a static IP to see if that makes a difference.

I am on KE7 stock rom with root and had this problem too. It just started yesterday and got stuck at obtaining ip adress. So I switched WIFI off and flight mode on and after some seconds wifi on and flight mode off and it connected. I also noticed that now sometimes when it is in standby it disconnects from the wifi network (but wifi is still ON) and when I wake it up it connects to my network.

Me too, same problem.
If wifi is ruled on "sleep when screen turn off", it don't wake when screen turn on.
It stay on " searching for IP adress...".
For the moment, I'm forced to leave wifi on "never" and I use Juice defender for disabling wifi on screen off.
I really think it's a common pb with SGS 2. May be it will be fixed with 2.3.4.

Same problem. I 'fix' it by turning off wifi then turning it back on and it gets an IP address immediately.

same problem here with a dlink dir-615 router. from time to time the phone can't get an ip, and it only works if i reboot the router. didn't try with another router yet ( well, i connected to a few more but not frequent so i can see if there are problems), but i ordered a new one anyways since the dlink also crushes my battery too.
try posting the brand/model of the router you have problems with, maybe there's some specific ones that are troublesome.
d-link dir-615 here / ke7 stock - rooted

I also have a dlink router. But I get the same problem with a Belkin.
With my first SGS, no problem. I really think it's a specific issue on SGS2.
I'd read in some place that 2.3.4 will fix some wifi problem known for the moment on 2.3.3...
Let's see...

I'm seeing this with both my home router (Netgear WNDR3700) and my office router. Disabling & re-enabling WiFi on the SGS2 solves it -- fortunately, it's easily accessible on the notifications panel.

Same thing with Dlink dir 815.
Sent from my GT-I9100 using XDA Premium App

Same thing here with Draytek 2820 router, all other devices (PC's Phones, PDA's etc) have no problem. SGS2 however needs WiFi turning off when waking from sleep to get it to obtain an IP address again. However my HD2 also running Gingerbread 2.3.3 works faultlessly.

KF2 seems, for me and some others, fix the problem...

hi
lucky me, i thought im the only 1 having problem with wifi
my problem, same as the others
the wifi try to connect (obtaining IP) and then disconnected
it will scan again, same thing will happened
try with all type of protocols, wifi b,g,n wep, wpa, no passwd
results still same
try to connect wifi at my office, results also the same
im on KF1 using dlink 615
hopefully someone can help us
tq

Just got my Galaxy S2 today. Cannot connect to wifi network on G or mixed mode, with or without security - just tries to obtain an IP address. Ridiculous.
Any help ? Quick search on Google doesn't bring up too much. There does seem to be an app called "FXR Wifi" but I don't expect to use that on a brand new phone.
Update: Upgraded my router's firmware (WRT54GS) and it works !

I have the same problem with my SGS 2. I can't connect to an AP - NETGEAR DG834G.
I found a partial solution to use my phone with my AP until I solve the problem. In the Wi-Fi settings menu enter Advanced mod and set the IP address, Gateway, Netmask, DNS1 manualy (by touching <Use static IP>). If you don't know what IPs you have to set for IP address, Gateway, etc. just connect with you laptop or desktop and use the settings from your computer. Just make sure you type a different IP address in your mobile (not the one from your computer - for example in you computer you'll find something like this: 192.168.0.3, you'll have to type in your mobile something like this: 192.168.0.10). The rest of the settings have to be identical.
Good luck!

To solve this "obtaining ip address problem". Set the following manually in the advanced configuration and save it.
1. ip address(your choice).
2. subnet mask(255.255.255.0).
3. default gateway(192.168.1.1).
4. dns servers(8.8.8.8,8.8.4.4)
Note: The above given values are the most commonly used, you change it if you want so.
After entering these values manually(and correctly), it will connect to the networ in 1 or 2 seconds.

like mine SG s2, wifi connects works perfectly at home and friends place,
but stucks at obtaining ipaddress for wifi, at the mall and college, ( where it needs first login page for authentication) ( or to agree user terms and regulation),
any idea, how to fix this issue.
Thanks

mine also does this where it doesn't get an ip. Reboot your router or just disable and re-enable the access point feature on the router and it should work without having to reboot it
Sent from my GT-I9100 using Tapatalk

but at university?college or mall, we dont have access to router.
any other idea to fix this
Thanks

Hey guys! Did you find a fix for this problem? I have the same thing happening right now. I tried at different places, home and country house with Zyxel P660HN and Cisco E4200 respectively. Stuck at obtaining IP address...

XSCounter said:
Hey guys! Did you find a fix for this problem? I have the same thing happening right now. I tried at different places, home and country house with Zyxel P660HN and Cisco E4200 respectively. Stuck at obtaining IP address...
Click to expand...
Click to collapse
Search xda with 'wifi rare' and 's2 wifi not working'.. U can find few threads dealing with wifi problem..
Sent from my GT-I9100 using XDA Premium App

BUG: WiFi Connection - Obtaining IP Fail

Since the update, WiFi fails to connect to the Router after several starts (sleeps).
Upon entering the WiFi control panel, you notice it's stuck at "Obtaining IP Address" indefinitely.
The only way to resolve the problem seems to be to manually shutdown the WiFi and restart it again.
The problem reappears after several sleeps.

i have the same problem... whenever I wake my tf up I have to shut off then turn on the wifi. Annoying!

I always leave the wifi on as a result. Normally if I pull the power on my router, it'll fix it.

I had this initially at work when I first acquired the unit, but my Froyo phone couldn't get an IP either so I figured it was work related. Every day since then it has worked seamlessly everywhere.

Got the same issue, have to switch Wifi off and back on to fix it. Still running 3.0.1 though, hopefully this gets fixed. What versions are the previous posters using?

Not seeing an issue on mine. Running 3.1.

I had this issue too ever since flashing PRIME 1.4 and going from 3.0 to 3.1 but as time passed this happened less frequently and now it happens once in a long while. I believe (not sure though) that the update downgrades the wifi (drivers or whatever) version as some other things (gps too i think). maybe that causes the issue.

I've seen this also with my stock 3.1 16GB. Doesn't happen all the time, but enough to be annoying.
So I find it's best not to leave the tablet attached to the dock because of the dock battery draining issue, and now maybe it's best not to use the wifi power savings mode because of this problem.

I have been experiencing weird issues with the network I built at my own business. I have 4 pc's, a NAS and a printer connected to my router. Previously I had 2 pc's via direct connections into the router along with the NAS and printer and the other 2 pc's and my Galaxy S phone connected via wireless. The minute I introduced the Transformer to the network (after discovering the Transformer couldn't see channel 13 and having to change my router to a lower channel) I have had issues.
Everything would work fine until I used the Transformer on the network and then the wireless would go down within a matter of hours and be unresponsive until I rebooted. I eventually connected all pc's to the router via a powerline socket network and only had the phone and transformer via wireless as I needed the pc's connected reliably.
I have eventually found that the only way to have the wireless working fine is to either not use the Transformer at all with it or (the option I am using now) to have the router only use B & G ranges and to turn of N. I wonder if there is issues with the drivers for the wifi regarding the N standard (could be a stupid question but I know zero about network standards / drivers).

klau1 said:
Since the update, WiFi fails to connect to the Router after several starts (sleeps).
Upon entering the WiFi control panel, you notice it's stuck at "Obtaining IP Address" indefinitely.
The only way to resolve the problem seems to be to manually shutdown the WiFi and restart it again.
The problem reappears after several sleeps.
Click to expand...
Click to collapse
Same here......
Sent from my Transformer TF101 using XDA Premium App

Ive had this issue when I first got my TF with 3.0. It was still there after updating to 3.1. Someone here mention to set your wifi to static ip. I did and the problem is gone now.

Issues connecting to 802.11n

Been using wifi at work, understand that recently they changed the config on the router to only broadcast N. Ever since my NC will scan, connect, then immediately disconnect. I am running CM7 on nightly #177. Been doing it with several previous nightlies. I have a Netgear WNR3500 at home that I have setup to broadcast both G and N, the NC always connects G at 54mbps. Is there some setting I can check or file I can modify that will let me modify wifi settings on the NC? Any help with the N connection would be great. Thanks.
Edit: Ok, I lowered my overclock from 1.1ghz to 800 and it connected without a problem. Seems the overclock is having issues. Have to play around with it a little and try and figure things out somemore. Please disregard.

I'm having the same problem. My school recently switched to an n network and now I can only get connected occasionally and the connection drops within a minute or two, even if I'm in the middle of uploading a file.

Long story short, I can only use the internet if I set my router to 802.11g only.
I have a new Nook Color that I couldn't get to register. I tried updating the firmware to 1.4.2, which didn't help. I ended up being able to register by setting my D-Link Dir-615 router to G-only. After registering, I installed [CM7.2-RC1] MiRaGe (04/16/2012), but still can only connect when the router is set to G-only. G&N and N-only won't work. I've tried everything I can think of, including resetting the router to factory defaults and turning off wifi security. I've never touched airplane mode nor the overclock settings on the NC. I've tried forgetting all wifi connections, turn off wifi, etc. many times. I have a media player (N) and laptop (G) that both work perfectly. Setting the router to G-only cripples the speed of file transfers to my media player, so I'd really like to find a better solution. If anyone has any ideas, I'd be very appreciative.
EDIT: To clarify, when the router is set to something other than G-only, the NC can still connect and gets full green bars, but no internet app will work. If I then set the router to G-only the wifi indicator on the NC will disappear for a second, then reappear and the internet works perfectly without me touching the NC. I don't have to turn off wifi or anything, just tap refresh on the browser.

check your router against a different device.

DigitalMD said:
check your router against a different device.
Click to expand...
Click to collapse
My media player (802.11n) and my laptop (802.11g) both work no matter what mode the wireless is set to. My Nook Color would connect fine, full green bars on the display, but no internet. Setting the router to 802.11g-only mode would make the Nook Color work, but slow down my media player.
Solution: I put dd-wrt firmware on my router and the Nook Color works perfectly while the router is in G&N mode, and the file transfer speed to the media player is back up to where it was.
Afterthought: I really thought it was the Nook Color that had the issue. This problem (NC only working when the router is set to G-only) isn't uncommon on the Barnes & Noble support forum and the media player worked great at N speeds. I went through my router's settings multiple times, testing after each minor change. I don't know why the dd-wrt firmware made it work, I'm just glad it did.

The problem with 802.11n has been present from almost day 1. See
http://forum.xda-developers.com/showthread.php?t=959823&highlight=wifi
The sure fix as others have noted is to not use 802.11n. Good to know that dd-wrt fixes the problem - assuming you have a router that supports dd-wrt.