wii u keeps disconnecting from internet.

i bought a jailbroken wii u a few days ago but i cant get it to connect to the internet 🙁 it connects normally but when i try to use something that requires wifi connection it keeps disconnecting ALL THE TIME! i am already connected to 2.4ghz, the console is a few centimeters away from the router (i have 3 routers for the same network if this matters) and i cant understand why this is happening

i am using a different DNS, i have also tried to use other networks and none of them worked

can someone help me?