Repairs to the SQM housing and supporting communication equipment have been completed. The external housing cap and the failed POE (power over ethernet) component were replaced. I need to thank Unihedron for supplying a couple of the parts free of charge. They sent an entire replacement external housing cap with a new window already installed as well as a new glass window for the actual monitoring device. I broke the original plastic window while attempting to clean it.
Recently there have been enough dark-sky nights that I was finally able to re-calibrate the system. Re-calibration was necessary due to the housing and device window material being changed from plastic to glass.
So, the SQM charts on the Observatory->Sky Conditions page are once again active and providing accurate data on the brightness of the nighttime sky.