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I just ran into this same issue and came across this thread. Instead of just adding all of the FQDNs listed in the accepted solution, I took a packet capture and found connections to both of these FQDNS were having issues : fe2cr.update.microsoft.com fe3cr.delivery.mp.microsoft.com I added the following wildcard FQDNs, which resolved the issue: *.update.microsoft.com *.delivery.mp.microsoft.com Of course this could change in the future, but hopefully this helps someone.
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