HELP! My Antminer S3's suddenly stopped. I just received them three days ago. I got them configured and running easily. (I replaced an S1, so I was already familiar with the set-up). They worked fine for the last couple of days. Today they started beeping. When I go to the GHash.IO page, I can see the pool is still up and mining away. But for some reason, I'm no longer mining. When I log into each miner, and check the miner status tab, there are no stats. I already tried to power down and re-start them. What do you recommend I look at next to trouble shoot this? Thanks.
Ghash US1 went down, don't panic.
Yep, that was it. Not sure why my back-up didn't kick in (Slush pool). Maybe I had the wrong URL for that. So now I have us1.ghash.io:3333 as my first pool, and nl1.ghash.io:3334 as my second pool. The miners are buzzing again
Thanks
Ghash is our first "failover" pool (i.e. Pool #2).
Rather than using the URL for Ghash's US1 we use the IP.
We do this because in the past DNS (google 8.8.8.8 and 8.8.4.4) have had issues correctly supplying the IP for that URL.
This makes the pool appear unavailable or "dead".
Below is a snapshot of our Worker #22's Miner status page and is an example of what to expect for hash rate when OC'ing to 237.5MHz with a customized Stratum Difficulty of 915.

Ghash's Netherlands server is on port 3334?
Best of luck.