There are times this board won't create new thread when you hit create new post but an hour or even a day later everything is fine. Sometimes it won't let you respond to a thread in one forum but it will in another. There are times I've tried for over an hour to post something that never shows up but 2 or 3 hours later it will post just fine.
I've mentioned it 2 or 3 times. I don't have a WiFi connection so it's not WiFi but does seem to be board specific.