Is there anybody else that has the abovementioned problem?
We upgraded our 2 company routers to firmware 1.6.35 because we've had dyndns issues, which seems to be addressed in the new firmware(hopefully fixed).
The new problem is that the router sometimes seems to have difficulty dealing with time information (specifically the schedule configuration screen in admin gui).
The upgrade notes states that "May need to toggle Daylight Savings Time setting after upgrade."
What I've done is to erase the settings to factory defaults, reconfigured the router and toggled the daylight savings time setting" to see if this helps.