So I have (2) B29 Dragonmint miners to mine Decred and hooked them up for the past few days. According to Awesome Miner and the miner status page on my local IP, they're hashing at 2.4TH/s and very stable (low reject rate and HW errors). But on the Decred pool (I'm on coinmine.pl pool), they're not stable at all...hashing all over the place from 1.5TH/s to 2.1TH/s. Sometimes it goes up for a while but then will come back down.

I'm assuming this is not normal but I don't know what could cause this? The miners seem to be hashing fine from what I can tell but it's just the pool I'm having issue with. Any ideas what might be causing this?