What conclusion should I draw when I reboot my DIR-625 and it takes upwards of 20 minutes to reboot - I'm not joking - during which the (Firefox) status bar says "Waiting for 192.168.0.1..." and the router's configuration interface says "Please wait 0 seconds"? According to Windows 7, my signal strength is 4 out of 5 bars.
Lately, this happens every time I reboot the router. Is it time to replace it?