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Update error code 30088-27 Office 2021 what to do to get corrected????
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Does anyone have the Release Notes for Version 2408, Build 17928.20066?.......
https://learn.microsoft.com/en-us/officeupdates/current-channel-preview
Did this preview fix the issue?
Does anyone have the Release Notes for Version 2408, Build 17928.20066?.......
https://learn.microsoft.com/en-us/officeupdates/current-channel-preview
Did this preview fix the issue?
No it did not fix the issue, unfortunately.
Also, I was actually unaware that this was a Preview build when I updated. I really don't care but it would have been nice to know that in advance.
Regardless, the issue remains, for me at least.
I have identified a solution that address this specific issue, as this exact problem affected my environment starting with the June Office Updates.
It appears that Microsoft has changed the communication method for Office Click-to-Run. Previously, OfficeC2Rclient.exe used the WinInet proxy settings (Internet Settings) to connect to Microsoft's cloud services. However, following the June update, OfficeC2Rclient.exe now utilizes the WinHTTP proxy (configured via NetSH) for communication.
Depending on your environment's configuration, systems without a properly configured WinHTTP proxy will default to using the Default Gateway to access the internet. This could result in traffic being blocked by your Default Gateway Firewall, as such traffic typically routes through a proxy. In environments where a WinHTTP proxy is configured to use an actual proxy server, authenticated proxy rules may cause the traffic to fail with a 407 error, as the Windows WinHTTP proxy does not handle authentication well.
In our environment, we addressed this by reconfiguring our firewalls and proxies to allow the necessary communication. Given the risks associated with recent CVEs affecting Office products in the past couple months, I hope this information helps others who have been unable to update their Office installations, thereby reducing their exposure to potential vulnerabilities.
Thanks for the post, Mark.
What if you're not using a proxy, though? I'm not all that technical but when I check it indicates I'm using direct access.
Then you have to configure your firewall to the Office Update CDNs and Office Cloud destinations.
Make sure you Default GW also is not doing Layer 7 interceptions, this has caused issues with our Office to Azure in the past.