Quickbooks Premier Plus 2024

Did a full/clean removal and installed QuickBooks Database Server Manager on the server that hosts the shared company files. 

Only one folder is selected in the "Scan Folders" section. When I click "Start Scan", it runs up to Network Diagnostics then says "QBCFMonitorService not running on this computer" but it VERY MUCH IS RUNNING. Both the "Database Server" and "Monitored Drives" tabs show "...Status: RUNNING"

I tried spamming refresh on the services list while running the "start scan" and saw the Diagnostic STOP the service (QBCFMonitorService), then post "QBCFMonitorService not running on this computer", then it starts the service again but says "Network Diagnostics: Failed. Resolve errors and Retry!!"

Main issue is users getting H202 when trying to switch to multi-user mode. Tried all the solutions in "How to fix H202" article but none helped. Users can ping and access the server and shared folder. They can create files and modify etc. 

Really confused on what the network diagnostic is doing...Unsure if there's a different log file I can check somewhere or something?