Wireless problems with 3.0 beta 10

After upgrade from 2.9.42 to 3.0 beta 10 we have problems with wireless on MDA/PDA devices. Device connect normally but after some time (eg. 1 minute) data don’t pass across interface, but it’s still connected. If I disconnect and reconnect again, some time everything is ok and then the same problem.

Tested on two RouterBoards with MDA Vario and HTC TyTn and problem is same… One RB run hotspot, one only simple DHCP…

After downgrade to 2.9.44 everything is fine…

Some suggestions ?

try disableing periodic calibration… i saw similar problems on a test PtP link in beta 7

After disabling periodic calibration and wmm it works so much better. With power saving set to minimal on my device it works fine. Thank you