Are there additional ports, besides 8088, that are required to be open for the designer to connect? I have a situation where there are several firewalls between me and a particular gateway and get a SocketTimeoutException when I try to open the designer. I can connect to the gateway webpage just fine.
If SSL/TLS is enabled you would also need 8043 or whatever port it’s running on.
Not using SSL so only 8088 is required?
Yeah, that should be it.