R63 Retro - TCP/IP issue

I have port forwarded TCP&UDP on port 80, 30001 and 30000. Port 80 works fine, I can connect to both the webpage and the SQL database however, I am having struggle trying scan for incomming connections on both 30001 and 30000 (they have been port-forwarded).

I get this error:

System.Exception: Could not set up MUS socket: System.Net.Sockets.SocketException (0x80004005): The requested address is not valid in its context at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.Bind(EndPoint localEP) at Phoenix.Net.MusListener..ctor(String string_1, Int32 int_1, String[] string_2, Int32 int_2) in C:UsersNETODownloadsPhoenixPhoenix v3.11.0 (14986)Phoenix v3.11.0 (14986)SourcePhoenixNetMusListener.cs:line 28 at Phoenix.Net.MusListener..ctor(String string_1, Int32 int_1, String[] string_2, Int32 int_2) in C:UsersNETODownloadsPhoenixPhoenix v3.11.0 (14986)Phoenix v3.11.0 (14986)SourcePhoenixNetMusListener.cs:line 35 at Phoenix.Phoenix.Initialize() in C:UsersNETODownloadsPhoenixPhoenix v3.11.0 (14986)Phoenix v3.11.0 (14986)SourcePhoenixPhoenix.cs:line 195 at Phoenix.Program.Main(String[] args) in C:UsersNETODownloadsPhoenixPhoenix v3.11.0 (14986)Phoenix v3.11.0 (14986)SourcePhoenixProgram.cs:line 36

the code looks like this:

## MUS TCP/IP Configuration
mus.tcp.bindip=
mus.tcp.port=30001
mus.tcp.allowedaddr=

I have removed my IP for security purposes.