Problems with DCS – Fails to get new RID pool

Hey, does anyone has an idea why I am currently experiencing problems with one of the DCS in my environment which is failing to get a new RID pool from the master since it has exhausted its pool? On doing both replication and RID manager test nothing out of the norm turned up but on invalidating the RID pool it turned out that it had already been invalidated. My attempts of coming up with a user object to have the RID pool request from RID master were not successful either.
