Thank you Poor Boy for answering the Question...that's usually what you see after a Denial of Service attack. Whether to TDPRI or the hosting system...
Yeah, there has been an attack on the system at some level, and now they're checking the credentials of whoever logs on, making sure our addresses and other protocols are legit. As you say, maybe Denial of Service or some hijacking exploit
Annoying, but as one OP pointed out, probably for the greater good.