Connection drops every half hour with error (Reason: 252=<unknown>)

Hello! I have a repeater setup that has been doing this for a long time, across different builds. I'm pretty confused as to why. is this due to a DHCP drop, or a radio problem? the system log doesn't give me much info besides just saying "link has connectivity loss" before dropping. if anyone might know what's going on, I'll post my system logs and any other info needed, as requested.

Thanks!