ok when i was at home, i had my wii running the wired LAN adapter and it worked fine. i could get on the news channel, weather, internet, shop, etc. i could play online with mario strikers.

then i moved into my dorm for school and im trying to get my wii online here using the LAN cord and it wont work. everytime i try to do anything online related, i get a 107305 error code.

what's wrong?

my current wii version is 3.0U
is it not working because of a nintendo update or is it something worse

im not very good with computers and internet things so if you try to explain it to me, try to explain it in layman's terms