I'm a network admin, so this isn't my first rodeo, but I'm really fighting Wii U networking at the moment. The same problem exhibits itself with both wireless and wired networking. I prefer wired networking so I'm going to go down the path in explaining what's going on with that:
*The error code is: 103-2107 (screenshot)
I have manually set the IP address for the connection to an available IP (192.168.0.85) and the subnet is set correctly (255.255.255.0) along with the gateway (192.168.0.1). Further, I've set the DNS entries to Google (188.8.131.52, 184.108.40.206). No proxy. MTU default.
When I go to test the connection, I get the above result. I do see the adapter lights triggering when the interface becomes active and I CAN ping the IP whilst the test is running (
ping 192.168.0.85 with very low latency replies from another system on the network).
For all intents and purposes this Wii U should have no trouble connecting to the Internet, yet it refuses to do so.
Any idea as to what may be going on or how to resolve this kind of issue on a Wii U with
5.5.1 U firmware?