Servers unavailable to recover files in DPM

Question

We are using Microsoft System Center 2022 Data Protection Manager version 10.22.197.0 Update Rollup 2.

The protection agents of my protected servers are working properly. Backups and recovery point creations are doing fine.

I am not able to recover any files if needed. Clicking the Recovery tab in the list on the left no servers are being listed to recover an item from. (See image below)

I have tried rebooting the server several times, including installing the latest updates to no avail.

My DPM server is properly connected to the network and domain.

Manually inserting search parameters gives me the following error.

"The server could not be found in Active Directory. (ID: 31144)

Ping this server to verify that it is accessible and then retry the operation. If the server is accessible, verify that the DPM service is running and that the current user has a domain account and is a member of the local administrators group. If the problem persists, contact your DPM administrator."

I can ping the servers, the DPM service is running (I tried restarting that too) and I have a domain account that is member of the local administrators group.

I have knowledge of Powershell and tried to recover an item with that, which gives me the following error:

"DPM cannot detect the volume NO_PARAM on server NO_PARAM. (ID: 31085)

If the volume is present, this problem can be rectified by refreshing the state using the Get-Datasource -ProductionServer <ProductionServer> -Inquire cmdlet, then retry the current task."

This I tried, which gave me the following error:

"Get-DPMDatasource : Cannot bind parameter 'ProductionServer'. Cannot convert the "Microsoft.Internal.EnterpriseStorage.

Dls.UI.ObjectModel.OMCommon.ProtectionGroup" value of typeMicrosoft.Internal.EnterpriseStorage.Dls.UI.ObjectModel.OMCommon.ProtectionGroup" to type "Microsoft.Internal.EnterpriseStorage.Dls.UI.ObjectModel.OMCommon.ProductionServer"."

I hope you can help me out, because if I cannot recover files in any way, what good is DPM.

Thank you in regard.