Sep 18 2020 03:36 AM
Sep 18 2020 03:36 AM
When I try to install an offline extension (Active directory, DNS, DHCP, ...), I receive the following error message.
Couldn't install the extension: 'DNS (Preview)'. Error: Failed to install package msft.sme.dns. Error: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
My server does have a "web-Server" certificate signed by my certification authority (recognized on the domain) and is accessible via https.
A way to solve this problem?
Sep 18 2020 11:27 AM
I too am failing to install Windows Admin Center extensions in an offline mode, but with a different error.
I've success fully copied all the .nupkg files to the "C:\temp" directory on the WAC server itself.
I've successfully registered the feed "C:\temp" and the .nupkg files do indeed show up in the "Available extensions" area.
However -- when you click "Install" it fails with:
Couldn't install the extension: 'Active Directory'. Error: Failed to install package msft.sme.active-directory. Error: Unable to connect to the remote server
I've tried making the "C:\temp" directory have "Everyone" = "Full" NTFS permissions. No change.
I've tried accessing the WAC console with FQDN/shortname/localhost and 127.0.0.1 in the URL field. Same error.
Tried rebooting the WAC server after registering the new "C:\temp" feed. Same error.
The puzzling piece is "unable to connect to the remote server" which doesn't make sense as it is connecting to itself.
Oct 12 2020 03:35 AM
@pbergergeoblue about the error: Unable to connect to the remote server i already opened a case to Microsoft.
what i can say is:
- even if WAC internet access is set to No access, it still goes to Internet.
- even if we open internet access to the whitelist URLs for WAC service
the following URLs are not enough
as it seems it goes to the following URLs as well
anyway if you open the access to all Microsoft Public IP address blocks https://www.microsoft.com/en-us/download/details.aspx?id=53602
I'm still waiting an official answer about the full/complete/right list of URLs to be whitelisted... if the server has no direct internet access...
Dec 14 2020 01:56 AM
@Chris81 about your answer:
"anyway if you open the access to all Microsoft Public IP address blocks https://www.microsoft.com/en-us/download/details.aspx?id=53602
How can you exactly open these Microsoft Public IP address blocks?
Wish you a nice Day!