Hey there, like IRD-PoolOperator said, this an automated (and temporary) action taken by the pool software to protect against DoS attacks when invalid or duplicate shares come in. However, in this case, the pool software was being a little aggressive because it sees everyone coming in on stratum+tls as coming from the same IP address. One person mining over stratum+tls crossed the invalid share threshold, likely due to a hardware issue, and it lumped all of you together and banned all of the TLS miners at once.

So that's my bad. I've adjusted things so it won't do that again.