Roon ARC cannot access my Core #2

“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“status”:“NotFound”}

Imac Core wireless
Netgear Router AX5400
Spectrum IP
Spectrum Modem
Netgear says the router does all the thing Roon asked it to do
No additional network hardware
No VPNs, proxy servers, or enterprise-grade securit
Port 55002