I tried to send you a private message but your box is full.
For now I can tell you that I can connect to cligate.101.ncplatform.net:6112 then sending the appropriates STS queries to authenticate then.
The point is, when I try to get the list of buys'n'sells from Mithril Ore, I get this answer:
<Error code="49" server="59" text="Access denied"/>