Wifi sleep policy not working I tried some stuff I found about sleep policy. I obviously tried setting it to Never, I tried the Wi-Fi keep alive app, it doesn't seem to work.

When I let the phone lie for a few minutes and then wake it, the wifi icon is grey and i cannot connect to anything right away, I have to wait till it turns green. This also messes up my GTalk, plenty of times i found out someone wrote to me only by manually opening the Talk app and waiting for it to sync (there was the red unconnected line at the bottom).

How do I fix this? 

I have Nexus S, if that helps.
Thank you
I was frustrated for a long time with the same problem. An app called Wifi Fixer seems to have fixed it. Hope that helps you too.