When I connect to my K4 with TCP, frequency control works well but PTT does not work at all unless I use omnirig for PTT. For WSJT-X I use TCP and CAT for PTT with no problems.
Comm Port connection and TCP connection are 2 different animals. As for TCP with name that is not a valid address, you will need to use the IP address of the radio.
I am using both Thetis and Flex via IP to VarAC and it works very reliably. is it possible your PC's Firewall is blocking some of this?
Understand. Definintely not a firewall issue. I am trying to use as few com ports as I can.
Actually the name will translate to a vallid address per mDNS. See ping below. Unfortunately some software like N1MM and apparently VarAC still require a hard coded ip. Other like WSJTX, DXLog.net HamLib and many others follow the standard.
Comm Port connection and TCP connection are 2 different animals. As for TCP with name that is not a valid address, you will need to use the IP address of the radio.
I am using both Thetis and Flex via IP to VarAC and it works very reliably. is it possible your PC's Firewall is blocking some of this?