I do not need a solution (just sharing information)
I encountered this problem without warning and for no obvious reason.
Symantec.cloud Status tells me that the computer is at risk. Same goes for the web based console.
On Windows 10 x64, when I navigate to:
Control Panel\System and Security\Security and Maintenance
I'm shown a message that starts with:
"Your subscription to Norton Internet Security ran out. ..."
that includes a button marked "Renew". Clicking that button brings up a dialogue asking "Do you want to run this app?" and that is:
C:\Program Files\Symantec.cloud\EndpointProtectionAgent\Engine\22.6.4.5\WSCStub.exe
Communication begins with the Norton server and then fails telling me "You Are Not Protected".
Clicking on the "Help me stay protected" option takes me to:
https://support.symantec.com/en_US/article.TECH234472.html
I've applied that advice and also that provided in the linking article associated with:
3. Reinstall the product
To install on Windows
1. Follow the steps in this article:
How to install a client <https://support.symantec.com/en_US/article.TECH215636.html>
I created a distributable package as advised in TECH215636. Install the product again and the cycle repeats.
Running SymDiag reveals that:
1. One or more SEP.cloud definition sets are corrupted - Manually updating definitions according to the advice at https://support.symantec.com/en_US/article.TECH212427.html is ineffective whether it's done remotely, locally or using the Intelligent Updater or Rapid Release options.
2. SEP.cloud drivers and services need attention - Service "eeCtrl" is not configured and operating propelry ... service not installed. Service "EraserUtilRebootDrv" is not configured and operating propelry ... service not installed.
Searching the web or the Symantec forum for advice regarding eeCtrl or EraserUtilRebootDrv yields nothing useful that I can see.
Checking:
https://hostedendpoint.spn.com/Subscriptions.aspx
reveals:
Symantec Endpoint Protection Small Business Edition
Total Available Licenses: 3 licenses
Usage: 1 license
Why have I lost access to licenced functionality all of a sudden and for not otherwise explained reason?
SymDiag Case 11172363