I too am having the "Patch Server Connection Failed" error.
The full message is as follows:
(No903)
Patch server connection failed.
The server may be under maintenance.
Please check the current news updates on the Official Site.
I disabled Windows Firewall and opened the required ports according to a PSOBB GameFaqs article:
"Your broadband router may be blocking the TCP port for the patch download server. The TCP port numbers are 11000, 11001, 11100, 11101 and 12000 ~ 12010. You may have to change your router settings to allow access to these ports. For information on how to do this, please consult your router's instruction manual."
The main page is saying that the servers have players but are also reporting N/A. And yes, I have downloaded and am running v2.6.
Anybody have an idea?
Thanks,
Ghidra