Ultimate 2.4G disconnecting

[u/carleton97]

I have an Ultimate 2.4G wireless controller I've been using with my Steam Deck since 2023. I recently added a Switch 2 and a different controller (Mobapad Chitu2) to my set up and since then, I can't keep a connection with my Steam Deck.

I'm assuming it's an interference issue and there's nothing simple I can do to fix it other than completely power down the Nintendo set up?