Joined Connexin and having now having problems with ARC

After many months of no problems with my previous supplier I joined connexin and as they don’t allow you to sort out port forwarding myself, I asked them to open port 55000.
They have told me they have done it but it still isn’t working. Here’s the information from Roon

{
“ipv4_connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“185.aaa.bbb.ccc”,“actual_external_ipv6”:“null”,“router_external_ip”:“null”},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.1.1”,“found_upnp”:true,“error”:“<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/\” s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/\“><s:Body><s:Fault>s:ClientUPnPError<UPnPError xmlns="urn:schemas-upnp-org:control-1-0">501ActionFailed</s:Fault></s:Body></s:Envelope>”}
}

Any advice as what to ask them thanks.

You can use Tailscale and avoid dealing with this.

Try turning UPNP off and setting up the Port Forward manually in your router.

I contacted the ISP and they said that port forwarding isn’t a service they allow customers to alter themselves as it can compromise the system or something!, that’s why they said they would sort it out at their end but it would appear they haven’t cracked it yet

Then as Jim mentioned, use Tailscale.

See the following FAQ for more information