1. Confirm there is not an active pop-up blocker enable in the browser, or a 3rd party pop-up blocker that is running.
No pop blockers on their two workstations nor on their server.
2. Confirm that the address for the MR web viewer is added as a Trusted Site.
The MR web site address is a trusted site
3. Can the issue be re-created directly on the MR server?
Yes
4. Record which updates were installed. Do not uninstall any updates, especially security-related updates, but keep a record of what was installed for future reference.
I would have to ask their IT staff for this information. What Windows updates came over last Tuesday is what did this on the two workstations. MR was working fine until then. However, no updates were applied to the server so I have explanation there.
5. I do not know what updates were installed or if they were server-only updates, IE updates, desktop-only updates, .NET updates, etc. Looking at the list of updates which are suspected, can the issue be re-created from a workstation which has not had the same updates installed?
They have deployed the updates to all workstations.
6. Does the issue continue if you stop both MR services and start them again?
Yes
7. If multiple browsers are installed, does the issue happen for all of them?
IE 111, Chrome and Mozilla makes no difference.
8. Are any messages/errors output in the Event Viewer on the MR server? Look at the custom event sources under Applications and Services Logs | Microsoft | Dynamics. There are several "MR-" logs.
I will send the two events logs in a separate reply.
In the meantime, the customer may be able to use the Report Viewer as a temporary workaround to export reports to Excel if needed. There are some limitations with using the Report Viewer to do the export so hopefully it works fine for them until the web viewer issue is corrected.
I have suggested this to them.
