2.4ghz signal keeps dropping

[Spindlefox]

Hi all
I bought a new 7800 DXL last week, all working fine until this morning, the 2.4 Ghz signal keeps dropping and reconnecting. It's been doing this all day, my phone will connect for a few moments then the signal will vanish again. The 5ghz signal seems ok, however most of my devices (including the laptop) need 2.4ghz. Has anyone else experienced anything similar?
I have not made any config changes, the router settings are still as they were 'out of the box'
Any suggestions on where to start would be greatly appreciated

Thanks
SF

[colosseum]

Same problem here. Wifi speed drops down frequently to around 100 Kbits (measured with iperf) for no apparent reason, despite excellent signal strength. Firmware version 2.32d.

C

[Spindlefox]

All OK now - i changed the wireless channel from a very congested channel 6 to channel 12 which I seem to have all to myself. Since then no problems

[gpvecchi]

Solved disabling WMM No Aknowledgement...