You are not alone, i have same problem, "from Sweden / EU " It started some month ago. I think it may be a port problem that is being blockt , it think it maybe port 3333 that is being block på your ISP or bye your router. On Monday i am going to call my ISP and check it out.
Another thing i have discovered is on my new miner dragon a1, is that it says the pool have stratum but it is not active. If i mine at btc guild it says " Has Stratum and Stratum Active " and i have a Stratum URL " stratum-lb48.btcguild.com "
But i get no info from this pool.
And ps, i was the second one that did found the block on this pool. it worked fine till i got one then the pool started behave strange with the connection.