EDIT: aurel57, take a look at the workers. Notice the one that has difficulty of 500 and share difficulty of 3738875? That's an S3 that I have set as "ADDRESS+500/500". The others are the rentals. One has "ADDRESS+256". The others just have "ADDRESS". You can see the effects of using the "+" and "/" clearly here.
Interesting to see that. So why did you do the +256?
im using the +256 on my s3 as well.
from original post here
https://bitcointalk.org/index.php?topic=671189.0Edit: AntMiners support p2pool. Static difficulty configuration recommended.
Since p2pool adjusts the difficulty frequently, therefore would bring hash rate loss when the difficulty changes at any time. As a result is that AntMiners' hash rate may be a little lower than that released officially when they are mining in p2pool.
We suggest you configure a static difficulty for AntMiner, when you mine in p2pool. Recommended difficulty is 256 or 512.
2. How to configure a static diff when AntMiner mines in p2pool?
Through Status->Miner Configuration, configure Pool Worker as 'BTC address/256+256' or 'BTC address+256'.