are you getting all rejected shares or a "dead" pool?
Same problem for me, I tried all three of the different qubit difficulty pools with my CPU miner:
$ tail -f log-cpuQ.1419016606
[2014-12-19 14:16:46] 3 miner threads started, using 'qubit' algorithm.
[2014-12-19 14:16:46] Starting Stratum on stratum+tcp://digihash.co:3012
[2014-12-19 14:16:46] Binding thread 1 to cpu 1
[2014-12-19 14:16:46] Binding thread 0 to cpu 0
[2014-12-19 14:16:46] Binding thread 2 to cpu 2
[2014-12-19 14:16:46] Stratum connection failed: couldn't connect to host
[2014-12-19 14:16:46] ...retry after 30 seconds
$ tail -f log-cpuQ.1419016686
[2014-12-19 14:18:06] Starting Stratum on stratum+tcp://digihash.co:3260
[2014-12-19 14:18:06] 3 miner threads started, using 'qubit' algorithm.
[2014-12-19 14:18:06] Binding thread 0 to cpu 0
[2014-12-19 14:18:06] Binding thread 2 to cpu 2
[2014-12-19 14:18:06] Binding thread 1 to cpu 1
[2014-12-19 14:18:06] Stratum connection failed: couldn't connect to host
[2014-12-19 14:18:06] ...retry after 30 seconds
$ tail log-cpuQ.1419017189
[2014-12-19 14:26:29] Starting Stratum on stratum+tcp://digihash.co:3036
[2014-12-19 14:26:29] 3 miner threads started, using 'qubit' algorithm.
[2014-12-19 14:26:29] Binding thread 0 to cpu 0
[2014-12-19 14:26:29] Binding thread 1 to cpu 1
[2014-12-19 14:26:29] Binding thread 2 to cpu 2
[2014-12-19 14:26:29] Stratum connection failed: couldn't connect to host
[2014-12-19 14:26:29] ...retry after 30 seconds
We are looking in to this. This is only for the Qubit algo correct? The other 4 algos seem to be working correctly.