I've noticed a drop in the # of miners but it doesn't appear to be a problem on the system. I'm not sure if it's provider related but I didn't get any alerts from them.
I'm got some patching to do on that server tonight so I'll let you know when it's restarted to see if there is any change...
FWIW my spondoolies are a-ok on your pool but my antminers are getting KILLED, like every 4-6 hours they just die and I have to reboot them.