Is this a work PC or your normal PC?
Check if you have DNS suffixes setup. Technically PCs shouldn't have suffixes setup, as it would append it for all local connections.
Secondly check your DNS server setting, is it on 1.1.1.1 (cloudflare or) 8.8.8.8 (google?)
Disable IPv6 for now as well and troubleshoot on IPv4.
Do you know how to dump your route table and show us the results here. Are the Wifi/LAN networks on the same subnet? (IP CIDR range?).