Took me about 6-8 tries to connect to the network earlier. Took a few last night as well. I get a maintenance message sometimes and other times something about being disconnected from the network. There have been a lot of people reporting issues with connecting to Home and getting disconnects from it as well lately. Who knows--normal PSN cycle of issues coming back around I guess. I would just keep trying.....or you may want to try rebooting your router.
Otherwise, don't worry--they have someone working on it :
.....but it might take him awhile once he actually gets to the server room, so be patient: