My two SMP clients are still running. Both uploaded work within the pass 24 hours.
The last time the SMP client stopped working for me, I updated it and it continued working.
As of 8:30pm my SMP machine wasn't able to get a WU for the 17th time. No point in keeping it turned on for the night. I'll power back up first thing in the morning.
Now that was odd. I made sure to check some sites before I shut down. When I rebooted, I had no eth0. So, one re-make/make install later, it's back on line. Seems to be back to normal for now.