Hello, I have been trying to play splatoon again recently, and yesterday morning it was working fine, but ever since yesterday afternoon, I’ve been unable to connect, just getting error code 104-2210 every time. This has been happening on both my real wii u, and Cemu (with a different account). Any ideas what’s going on? Is this fixable by me, or is this a server issue?
Clear shared save data for Splatoon on your Wii U.
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Btw if it still happens you can just wait 2 to 3 hours and it should work again at least that happened to me because i didint delete shared data but its more reliable to do what @GamersInternatio says.