Endpoint Protection

I've got about 5 clients reporting client errors and warnings according to the SEPM logs. Can anyone explain what's going on? When I spot check these systems they appear to be ok.

All clients are RU5 release and it's a in place upgrade from SAV10

examples of warnings/errors

Failed to disable Windows Firewall
Firewall Driver failed to open network adapter
Failed to install teefer driver

At the time of SEP install it disables WIndows firewall...
Do you have network threat Protection installed on these machines..
and are you sure its working fine ?
Try applying a firewall policy and check if it blocking the traffic.

If YEs then alls well..if not then Un-install .Re-install SEP on them..