How to configure RRC 1258MKII Control ISP fixed IP address

[bci.buchert]

Have changed the internet connection dynamic ADSL  to "Fixed IP" directly from the ISP.
How to change RRC 1258MKII Control from DynDNS to ISP fixed IP address. There is a Field in IP settings named "External IP/Host" which is usually left blank. Can I put there my fixed external IP? I think, I have to delete the settings in Remote DynDNS settings because it´s not used any more.
Could anyone help me with that issue? Thank´s in advance. 
 

[dj0qn]

Just change the DynDNS check interval to off, and that's it.

Actually, it is also completely harmless to let it continue to run, since it will never
make a change, anyway. So there is no rush to change it.

Do NOT enter anything in the external IP/host field! You don't need to enter your
external IP number on the radio side at all, but do so on the control side RRC in the
"SIP contact" field under the radio settings.

73,
Mitch DJ0QN / K7DX