Migrated from Server A to Server B from different providers, with different IP's for hostname, nameservers, etc. I've updated the nameservers for a number of domains, and they seem to be propagating, resolving, etc... for a short period of time, and then later, it looks like some of the domains have "jumped" back to the old nameservers...
Any idea what might be causing this? Solutions?
There are two possibilities: