PS5 constantly dropping connection

I see several posts about this same issue but no real resolutions. About 3 days ago my PS5 just stopped being able to play games online. It seems like it will connect intermittently and then drop connection. This will seemingly happen every few seconds (confirmed by Helldivers 2 that notifies you as soon as you lose connection to the server). This happens with both Wifi and direct LAN connections. This seems to be the only device affected by this issue.

I've talked to Sony technical support and Xfinity's. I got a new modem from Xfinity today but after setting it up, its the exact same issues all over again with zero improvement. Did anybody ever get this fixed? My next step is trying to get a technician out here to inspect everything and hopefully get it to work? I would greatly prefer to be able to just fix this myself.