Hey,
Right now there is a maintenance ongoing. If you are still having this issue, can you please come back to this thread after the maintenance: https://twitter.com/ForHonorGame?ref...Ctwgr%5Eauthor
Sorry to hear you still have issues starting any matchmaking. As you still have the issue, we would advise following the steps in our FAQ here.
If it persists, please create a support ticket on our support website. Please also include an image showing your port forwarding from the router and network details (showing IP address) from the console.
Thanks!