Purchased a AX86U model recently and same error message trying to register. Same serial on box, the VIP Member notice, and the device. Tried the warranty tool as well. In my case that’s telling me to contact support. For grins I tried registering an older monitor and got the same serial number error. Thought maybe it’s because I was having issues verifying my account but sounding like it’s a larger issue going on.
Hello both, i don't have your model routers, but in few cases, the BOX serial number is different from router login page serial number. so if possible, login the router page, and get the correct serial number in the device summary