wifi sleep policy not work correctly?

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My wifi seems to disconnect from my wifi when the screen turns off, despite me having changed my settings to never sleep. When I look at the wifi settings it says "Unsuccessful Connection". I didn't have this problem with my MT3G.

Anyone having similiar issues or a fix?

wifi Reconnection issues

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I'm having the same problems with mine.
It initially connects to wifi fine but when the screen goes off it sometimes drops the connection and will not reconnect without a reboot.
I have tried setting it to keep the wifi when sleeping but it makes no difference.
I found a few similar reports elsewhere and followed most of the suggestions, like changing routers, changing wifi channels, setting an IP address instead of DHCP etc. Nothing seems to make any difference so far.

Mine never seems to reconnect after waking up, but I just go into the Wireless settings/Wifi settings window (where it lists all the Wifi networks in the area) and press on the network name and it brings up a dialog allowing me to connect again. I press the Connect button and it instantly reconnects. No reboot required...

Try increase your router's "Group Key Update Interval". I had the same problem with my D-Link DIR-655. I changed mine to 10 hours and it's working fine for me now.

i have the issus that my wifi is "connected" i mean i see the logo at the top bar but after a few minutes i don't get any update from the internet like gmail oder twitter when is wake up the device from sleep i get them back again

maybe it something with the Group Key Intervall but i can't switch it on my speedport w700v router

I just tried switching mine, highest it can go is 7200 seconds, so I bumped it to two hours instead of one. linksys

my wifi reconnects when I wake the screen almost 100% but it's not reliable.
I have to go to wifi list and reconnect. Sometimes I disable wifi and then re enable, conects no problem. Irritating

i heared that switching the encryption from wpa/wpa2 to only wpa2 will solve this issues, will try it when i am at home

...seems like almost everybody got this problem.

for example with my Hero i don't had this problems so it's something with the W-Lan card of the Nexus

Got this problem too but will try the suggested work arounds when I get home tonight