Anyone else had issues with power saving modes on the fritzbox 7390? Haven't had it a week and I get problems with my phone dropping and as a result band hopping:

11.05.13 22:37:19 WLAN device registered (2,4 GHz). Throughput 65 Mbit/s. 
11.05.13 22:37:19 WLAN device registered: Reactivating WLAN at full power (2,4 GHz).
11.05.13 22:05:58 No WLAN device registered any more: Reducing power consumption (2,4 GHz).
11.05.13 22:00:55 Deregistering WLAN device (5 GHz): WLAN device not responding. 
11.05.13 21:54:58 No WLAN device registered any more: Reducing power consumption (5 GHz).

It's a pain and results in interrupted connectivity and the phone briefly falling back to 3G.
It happens less with my laptop, ive only manage to show it properly once, but this is the result. This doesn't produce anything on logs though, just horrible performance:




2.4ghz N300 > Gigabit to desktop PC. 5ghz isnt supported on this card. Notice how its connected at 150Mbps, it usually sits at 243Mbps (power saving modes disabled on notebooks wireless card or set to maximum performance). Managed to catch it in the act too on inSSIDer as it did this:


Normal:


This is with it sitting next to my asus RT-N16 for comparison. As you can see, this band is not congested in our area.

I always disable every power saving function on devices that do not run on batteries, because power consumption is not an issue, and they generally result in issues like these.

But i cannot figure out anywhere in the interface or the configuration file to force full power at all times. Would have thought that such a high end device would allow you to force high end peformance at all times.

Anyone had the same issue?