Connecting Rig Manager to Windows Comp over ethernet thru switch

Rig Manager v3.5.27

Windows 11 64-bit

Kemper is in the basement studio. Computer is in main floor office. Connecting the Kemper to a Poe switch allows me to use Rig Manager on Android via wifi but does not allow Win computer to connect to Kemper on same network. Poe switch is connected to main router. Sorry if this has been already addressed but I've gone back 6 pages of threads to find a similar issue but most are related to Mac devices or 3rd party work around. Is this a configuration issue with the router? Is this an issue with Kempers on switches?