I have tried to get Arc working but without luck so far.
I have followed a few threads and was hopeful that changing the IPv6 configuration from Stateless to Off may solve the issue, but sadly not.
Following is the diagnostics data
{
“connectivity”: {“status”:“NetworkError”,“status_code”:504,“error”:“error: Error: ETIMEDOUT, response code: undefined, body: undefined connected? undefined”},
“external_ip”: {“actual_external_ip”:“xxxx”,“router_external_ip”:null},
“natpmp_autoconfig”: {“status”:“NotFound”},
“upnp_autoconfig”: {“server_ip”:“192.168.1.254”,“found_upnp”:true,“error”:“Did not find UPnP service with WANIPConnection on network”}
}
Any help much appreciated
Go to room and double check the IP of the core, and then select it from that ‘select device…’ option. Back at Roon, settings → ARC, check the port number, and add it to the start | end boxes. Check that it looks similar (port number might be different). Then, restart the hub and your core. Let us know if that works.
that is one of the sites that doesn’t give a true indication of whether the port forward is correct.
If you have a port foward setup for 55000 but nothing internally that site will say its closed even if the port forward is correct.
Much better to use GRC shields up as an indication of the port is open
On GRC it will have one of these results if you test with your roon arc port:
Open – connectivity ok through to roon
Closed – port forwarding is ok but can’t see roon
Stealth – port forwarding is not working, ISP is blocking or traffic is not reaching your public IP (cgnat etc)
I’ve also got a BT business FTTP circuit at home but don’t use the hub (I have a meraki firewall) but the port forwarding works ok over that circuit so it must be an issue with the hub.
for BT it’s not done in the hub, it’s assigned in their network for your account. You would have had to have ordered it as an add-on or during the original purchase.
Port 
