Issues with Switch repeatedly disconnecting from the Wifi

My nintendo switch keeps randomly disconnecting from our ATT Fiber wifi and reconnecting every 15 minutes or so. I use it relatively close to my router and get NAT Type A with every network test so the issue isn't a weak signal. However testing it on other networks has shown me that my switch only has an issue on our fiber line.

I haven't recently switched internet providers or anything, I've reset network settings, restarted my switch numerous times, and I've changed dns settings. I get either error code 2618-006 or 2618-0513 everytime I play an online game. I've gone into my router settings and set up an ip passthrough for my switch's mac address but that hasn't seemed to do anything. I've tried MAC filtering but turning the WPS setting off makes the wifi on other devices in the housebold unstable.

I'm just not sure what else I could try.