What actually are you mining with and what's your username - (PM me if you want)
There's only a few users on the SG server that make up the ~135TH on there.
If you are running linux then do the following 2:
mtr --report sg.kano.is
mtr --report stratum.kano.is
Also if you swap to the main pool stratum.kano.is does that make any difference?
My userID is MiningAsia. Running Knc Neptune (only 2 cubes out of 5, cgminer 4.9.1). Running windows so can't test those commands.
Now mining at main pool (stratum.kano.is), everything running normal.
My config:
[Main pool]: sg.kano.is:3333
[Failover 1]: stratum.kano.is:3333
[Failover 2]: de.kano.is:3333