I have the same Problem with serveral clients. VSE 8.8.1445 is installed an I try to run an uninstall task because the install task for VSE 8.8.1522 doesn't work for these clients (Details: Product "VIRUSCAN8800" installation failed, reason "Content download error".) Normally I can upgrade to VSE 8.8.1522 without any problems.
EPO Version 5.3.2 and the agent is 188.8.131.526.
That article is not related to this issue exactly. My issue is I get errors when running an uninstall task for VSE 8.8.1247. I am running an uninstall task because the install task for VSE 8.8.1522 does not seem to install on top of 1247. In the past I have been able to deploy the new version of VSE which would remove the old version and install new one without any issues. Now, it fails so I have to do an uninstall first. The big issue here is the job reports as failed, but looking at the logs I posted, it shows the uninstall succeeded. I have confirmed the product is removed from the system and I am able to install the new version afterwards.
I want to know what is causing the "Content download error" & "Unable to find valid repository" errors so I can fix it.