Error Messages on Snap Deploy 4

We started getting an error saying "Failed to initialize a network connection. Please check that you have a valid network connection" on any computer trying to connect to our Acronis Snap Deploy 4 server while doing a PXE boot deploy. As far as we can tell nothing has changed on the network side.

Below is the error log from the server.

Cannot parse GUID ''.
Additional info:
--------------------
Error code: 258
Module: 100
LineInfo: 18255051DD41EDB7
Fields: $module : "C:\Program Files (x86)\Common Files\Acronis\Agent\osd_server.dll"
Message: Cannot parse GUID ''.