So today I tried using Port 2 instead of port 1 for ethernet to the Xbox and so far, all seems well. There must be a fault with port 1 on the R2 or something and I'm going to guess my R1 is also faulty on that port seeing as I had same issues with it. If any further problems I'll let you know. Appreciate the help with this and looking forward to the next Router (R3?!) that you guy's bring out.