I'm still at 15 at Nicehash and 8 at Wafflepool.  When did this start for you?  For me the connection issues happened immediately after my miner upgrade, and interestingly enough, when I go back to the old miner, it still doesn't connect.  For me this was when X15 became active on betarigs, I think Saturday the 28th.  I guess I can't understand the issue because I'm using the nicehash build of sgminer which they sponsored to make work with their website.  I will say there was one day one time when I restarted the miners and they connected instantly to nicehash, but that was only one time.