More than likely you are correct. Its not a server issue. But it can be an account issue, or a client issue that may be the cause, which would be funcoms issue. Perhaps he has something that is conflicting on his machine, or his family member is downloading something or streaming something causing a bottleneck.
I too have had ral issues with the authetication server as of late (last week). I have to log out all the way and re-enter to change a toon. Doesnt bother me too much as long as I get on, but given all the technical issues we have had recently, this is a small one. The other day, minis crashed and no one could get in to one. You just cycled through entering and exiting the mini. Clearly not my issue, and everyone experienced it.
Perhaps help him out grizzly, and move it to technical issues. Debating with the community if you are right or wrong is off topic and doesnt help the OP. Let funcom read it and see if there is something going on, its the least you could do IMO.