I've run into this problem a lot lately where I will try to log in to the UI for some reason and it doesn't respond. I don't know if it's related buy by USB drive attached to it stops responding as well. I do get an internet connection still, just can't connect to the UI. Only way I've found to fix the problem is to reboot the router. I'm using Merlin's latest on the AC66U.
Any help?
Any help?