Some simple rules:
1: Don't backup or restore your settings through HTTPS use HTTP!
2: Don't restore settings with gws-file when upgrade, even in same fw region, (1.13>1.32)
3: Always in beta fw do all settings by hand !!!
4: Do a reset with reset button before and after fw upgrade.
Push the reset button and hold it in until lights flash. Wait for router to finish rebooting.
5: Make sure that your energi savings for your networks card not is set on,
" allow this computer shut down this unit to save power"
6: Do'nt ever update or backup settings through wireless, alwas use LAN-cable and
only that cable connected when update, backup settings.
A big issue is all drivers on all laptop and pc, alwas use the latest.
Pic them from wi-fi developer site not from place you purchase your PC, lap-top from.
Many manufacture has problem with power supply therfor there is worth testing with a
another sypply, ex 12 volt and ~3Amp