Hi, has anyone else had problems with their 2866 after trying any firmware after 4.4.5.2?
Runs stable as anything for weeks & months on 4.4.5.2, if you install any Fw after that including 4.4.6.1 it randomly reboots, sometimes lasts an hour sometimes lasts minutes.
We have 4 x 962AP's running off it through a POE unmanaged switch (TP Link) and we find if we disconnect that POE switch and thus the 4 AP''s the 2866 will run fine. 
As soon as they are back in the network its goes back to rebooting.
Any ideas anyone? TIA

I have not seen any issues with new routers. Not even the 4.4.6.x firmwares.
Could you please contact UK support, provide them with config and logs when the reboot occurs while running latest firmware?

Hi, I'll have to ask our IT guys for the logs. We have managed to get it running stable by disabling the WCF in the firewall.