for the last couple weeks we have been having problems with both our 3DS's and our Wii-U. with the 3DS we play Animal crossing new leaf and have been since it came out. just a couple weeks ago we started having problems connecting with our 2 systems. not just the two of us but we play online with others and when we try to both go to the same town (online) only one can get in the other get the error code 018-0511. it just started around the time Super smash bros came out. the error code lookup is useless. we have also been having problems with the Wii-U CHAT. it comes up with an error code also and when we try to play Mario Kart 8 online its hit or miss.
Anyone have any USEFULL idea's? I have 4 routers in my house and have tried reseting them and reseting the internet setting on the Wii-U and 3DS's. nothing is working.