I had also some problems with pool connections today. I found then new pool from poland. The pool owner made some nice graphs  of the NetHash and PoolHash. It looked like there where some problems for a while with whole network. You can see it in "history" on the graph. Mostlikey there was some updates goin on many pools.

You can check the NetHash here (http://www.corpopool.com/stats.html)

soon there should be statistics for the miners too, so we will be able to see, how the things are going on.

BTW. I am not sure, but after few hours in this new pool i found, i have a feeling that i am getting more XDAGs than before.
Check for yourself and see, if there is any difference there. I am quite interested, is it me, or is it just a lucky day.

You can connect to the pool ---> xdag.corpopool.com:443

Hope you will inJOY it.