Hi,
we got 4 Exchange 2016 Servers which load balanced through (Network Protection -> Server Load Balancing) not the WAF.
And we got 2 Office Online Server (OOS) / Office on the Web / Office Web Apps behind / protected through the WAF.
OOS is combined with our Sharepoint 2016 Server (also behind the WAF) and these works without any Problems.
Now we connected the OOS with out Exchange on organisation level and get an errormessage like "Excel/Word Web App cannot open this document for viewing due to an unknown error". Append a Session ID.
If i try to open a Document over email2016.domain.de/.../... we get these error
but if i open a Document over this https://ex01.domain.de/owa/... we don't get an error and all things work great.
I think this isn't a problem from Exchange / Sharepoint or Office Online.
Does anyone have also this problem?
Regards
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