I've got a AC87R and ran into an issue, which was an issue when I originally installed 376.47. After the install, all my WAN requests redirect to the gateway (the ASUS). So if I go to www.bing.com, it redirects me to 192.168.1.1 and asks me to log into the router. Doesn't matter what I try and happens from multiple device types (phones, pc, iPad, OSX). This happened when I originally install 376.47 and now again with 376.48_1.
The fix is restoring to default and entering my settings again. I'm relatively new to Merlin's builds, so is this normal?
I've had the AC87R for a couple of months and it has been completely flakey, I'm hoping Merlin's firmware will make it finally usable....
This might happen if your WAN interface isn't properly configured or is failing to connect.