Default [Q] Wifi problem jelly bean roms

Hi all.I have a Lg optimus 3D device and I have problems with wifi connection in jelly bean roms.

I have tried almost all available jelly bean roms and the same problem.

For example: I switch ON wifi .....doesn't do anything.i go to wifi settings there is no wifi network available.i scan for networks and nothing...I wait for example 30 sec and suddenly apear 5 networks and connect.other times when I switch wifi on it connects straight away.
other times I switch wifi on and no network in the list .I do a scan and all the networks appear.otther times appear only 2 networks and not min
Is very annoying when you want to do something and it takes 5 minutes to connect.I am using v.30A baseband .I have tried also pesach kernel with the same results. I don't know if it has to do with kernel or baseband.Also the phone is lagging except in official cm 10.

In official ics I didn't had this problem nor on ics roms I have tried.Even in GB was ok.

Did somebody encountered this problem or somebody know a fix for this? I really appreciate .


Sorry for my bad English!