Indy Socket Error 98

If when trying to activate the component IdTcpServer indy to give to the follow error:

socket error # 98
address already in use

Make the follow:

IdTCPServer1.Active := False;
IdTCPServer1.Bindings.Add.IPVersion := Id_IPv4;
IdTCPServer1.Active := True;

the Id_IPv4 force the IdTCPServer to work in Id_IPV4 mode.

The issue are resolved.