Thanks for your offer to look into this situation. Tier two support triggered a software update on the HT502 to the latest firmware(1.0.7.6). This seems to have solved the disconnect issue. The previous firmware was several revisions from current. Time will tell if the update is a permanent fix. Could have been a corrupted firmware that was fixed with the update

I notice that the auto-update feature is not enabled for these devices, so it is a manual trigger.