1. Patch installation requires a dependency from a disable repository: (for example, patch A is stored in repo 'One' but it also needs patch B to complete the installation, but it's in repo 'Two', if the repo is not enabled I won't be able to install. Thus, in order to install it you will have to check that repo is enabled on Repository server (if it's a local repository) and that the repo conf file on client-server, has repo 'Two' and it's enabled)
2. Couldn't connect to server - so all patching cycle will fail
- Communication issue between endpoint and WSUS
- Go to Platform configuration
- Click on Logs & Alerts and filter Type on Error
- Filter Description on "Patch installation failed on computer"
- Click on Details to view the message
Pre-patching is expected to run again whenever patching fails.
- Pre-patching succeeds, so it moves to patching
- patching fails
- Post-patching skips (by default)
- Pre-patching will start again.