Channels Source (HDHomeRun OTA) Disappeared

My OTA Antenna which is connected thru an HDHR Quatro disappeared from my channels DVR server over the last several hours. I watched a show on my apple TV earlier this afternoon on one of the OTA channels, but when I tried to access the channels app on my phone It wasn't able to connect to the server.

When I checked on my desktop, I am seeing that my HDHR is missing from the server now:

This is very unusual. Any ideas on what might have caused this to disappear from my Channels server?

Update: It is now appearing again, but this issue caused a show to not be recorded.

One possibility is the IP address of your HDHR Quatro changed.
Do you have a reserved DHCP IP address assigned to it in your router?
https://getchannels.com/docs/articles/protips/networking/#dhcp-reservation

Thank you! I did not. I just set this up and hopefully, this will resolve my issue.