Hi

Please could someone possibly help point me in the right direction

We have two exchange servers, not running in Dag. We can create mailboxes perfectly but we can't change the mailbox plan.
We used to have only one exchange serve 2016, we are busy upgrading to 2019. We created a second server moved all mailboxes over etc.
Everything seems to work except when we change the mailbox plan it fails. We never had a problem changing mailbox plans before until now

This is the error from the panel.....

Error updating mailbox general settings. See audit log for more details.

System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Exception: Error executing 'SET_MAILBOXPLAN_RETENTIONPOLICY_ARCHIVING' task on 'reception@hiqatlas.co.za' EXCHANGE ---> System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> The request failed. The underlying connection was closed: An unexpected error occurred on a send. at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at SolidCP.EnterpriseServer.ExchangeServerController.SetExchangeMailboxPlan(Int32 itemId, Int32 accountId, Int32 mailboxPlanId, Int32 archivePlanId, Boolean EnableArchiving) --- End of inner exception stack trace --- at SolidCP.EnterpriseServer.ExchangeServerController.SetExchangeMailboxPlan(Int32 itemId, Int32 accountId, Int32 mailboxPlanId, Int32 archivePlanId, Boolean EnableArchiving) at SolidCP.EnterpriseServer.esExchangeServer.SetExchangeMailboxPlan(Int32 itemId, Int32 accountId, Int32 mailboxPlanId, Int32 archivePlanId, Boolean EnableArchiving) --- End of inner exception stack trace ---

This is the error from the event log

[6/11/2020 8:45:20 AM] ERROR: 'Hosted Microsoft Exchange Server 2016' SetMailboxAdvancedSettings
System.Management.Automation.RemoteException: The request failed. The underlying connection was closed: An unexpected error occurred on a send.
at System.Management.Automation.Runspaces.AsyncResult.EndInvoke()
at System.Management.Automation.PowerShell.CoreInvokeRemoteHelper[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
at System.Management.Automation.PowerShell.CoreInvoke[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
at System.Management.Automation.PowerShell.Invoke(IEnumerable input, PSInvocationSettings settings)
at System.Management.Automation.RemotePipeline.Invoke(IEnumerable input)
at SolidCP.Providers.HostedSolution.Exchange2016.ExecuteShellCommandEx(Runspace runSpace, Command cmd, Boolean useDomainController, Object[]& errors)
at SolidCP.Providers.HostedSolution.Exchange2016.SetMailboxAdvancedSettingsInternal(String organizationId, String accountName, Boolean enablePOP, Boolean enableIMAP, Boolean enableOWA, Boolean enableMAPI, Boolean enableActiveSync, Int64 issueWarningKB, Int64 prohibitSendKB, Int64 prohibitSendReceiveKB, Int32 keepDeletedItemsDays, Int32 maxRecipients, Int32 maxSendMessageSizeKB, Int32 maxReceiveMessageSizeKB, Boolean enabledLitigationHold, Int64 recoverabelItemsSpace, Int64 recoverabelItemsWarning, String litigationHoldUrl, String litigationHoldMsg)
at SolidCP.Server.ExchangeServer.SetMailboxAdvancedSettings(String organizationId, String accountName, Boolean enablePOP, Boolean enableIMAP, Boolean enableOWA, Boolean enableMAPI, Boolean enableActiveSync, Int64 issueWarningKB, Int64 prohibitSendKB, Int64 prohibitSendReceiveKB, Int32 keepDeletedItemsDays, Int32 maxRecipients, Int32 maxSendMessageSizeKB, Int32 maxReceiveMessageSizeKB, Boolean enabledLitigationHold, Int64 recoverabelItemsSpace, Int64 recoverabelItemsWarning, String litigationHoldUrl, String litigationHoldMsg)

Please any assistance would be great

Thanks

Claude