I'm getting alot of

[2014-03-06 22:02:36] Stratum connection timed out
[2014-03-06 22:02:36] Stratum connection interrupted

this evening.

Is it my connection, my cudaminer or the pool?

Also, When i try to add my cpu's 40khs to my gpu's 170khs, (by running 2 different worker) over the course of the day, the site report i've been doing 130khs(with 9khs wasted). Why does it look like my cpu's khs is being substracted from my gpu's work?