Report Server can't open any Excel file since we have changed DNS of the server where Office Online Server farm was deployed.
In order to solve this problem I implemented the following steps:
1. Remove the old farm with inactive url link via “Remove-OfficeWebAppsMachine” command
2. Deploy new farm with active url link via “New-OfficeWebAppsFarm” command
3. Check that the new farm was already existed via “<InternalUrl>/hosting/discovery” link
4. Run several additional commands such as
Set-OfficeWebAppsFarm -ExcelWorkbookSizeMax 100
Set-OfficeWebAppsFarm -ExcelUseEffectiveUserName:$true
Set-OfficeWebAppsFarm -ExcelAllowExternalData:$true
Set-OfficeWebAppsFarm -ExcelWarnOnDataRefresh:$false
5. Fill in new “<InternalUrl>/hosting/discovery” link to the Report Server settings and apply it.
BUT! While opening any excel file on the Report Server it shows an error with the old url link.
Such error occurs with excel files only.
