Gigaset C610A IP - showing registration failed

[biomesh]

Have you verified that all of the TCP/IP settings are correct? If the DNS server isn't correct, then it won't be able to resolve the server names.

[Bruce]

Have you verified that all of the TCP/IP settings are correct? If the DNS server isn't correct, then it won't be able to resolve the server names.

Good suggestion. The DHCP provided DNS is working for everything else on my network. And the phone was able to call home and uprade itself. To double check I replaced the URLs with IP addressed. Unfortunately it still shows registration failed.

Thanks for the suggestion.

[OregonVoIP]

if you are behind any type of firewall you need to disable all NAT.. just an FYI