A computer's agent UI (a package server) was showing a warning that was over one year old. It displayed the warning "Network usage is currently disabled".
The warning did not seem to be symptomatic of a problem. The SMA, PSA and other plug-in agents were operating normally. The error would not go away but had been displayed in the agent UI since it originally occurred. The administrator was looking for a way to eliminate it from showing.
Network usage is currently disabled. Network activity is blocked until < date in the past >
Management Platform 8.1x, 8.5 RU1
There was an XML file cached in "C:\ProgramData\Symantec\Symantec Agent\Alerts". The file was mostly encrypted, but doing the following resolved the problem:
The alert_id section (the first GUID in the string) is a randomly generated ID that probably has no meany any longer.
What does have meaning, and what would identify the file causing the bogus warning to reappear every time the SMA is started is the "Created" value. Also where expire="Never" is an indication it will not go away witout being deleted.
<alert id="{D637A96D-A458-4690-A055-FE9955DD6BF3}" source_cls_id="{43043A36-0302-4375-8086-F7DD368DCADC}" source_cls_context="4" info_cls_id="{1F0BDA09-A235-410A-8E30-D07793AA3C37}" info_cls_context="4009754624" flags="20000002" timeout="4294967295" created="2018-02-07 10:13:25" expire="never" params="DCAAAAwAAAABAAAAAgAAAAAAAAATAAAAAgAAAAgAAAAoAAAAMgAwADEAOAAtADAAMgAtADAANwAgADEANgA6ADEAMwA6ADEANwAAAA==" tasks="ESAAABEAAAABAAAAEAAAAAAAAAAWcNn9C1qmQr0GqMLJvdEd"/>