Trying to install the vpn UDP file in Asuswrt-Merlin ver. 386.4 for Asus RT-AC88U. (Having the same issue with RT-AC3100). When I upload the file it clears everything else. I've tried numerous combinations, but the router does NOT redirect. Using Nordvpn. Had great success with earlier versions. Nordvpn actually has a "how to" on their site which I've used several times as well. Wondering what ideas anyone has to resolve.