I'm one of the CO's for station 7079, and just recently we had a member of our team go SK. (W7ABD, you will be missed)
Two days after he went SK, our node has started reporting an invalid security key every morning when it automatically attempts to connect to 9075.
The diagnostics report that all of the PGP and security bits are valid, so I'm unsure what is going on here.
Its entirely likely that the timing is just coincidence, but we'd like to get our station back into the morning regional nets.