Hips deactivation, PC reboot and remote update of ERA Agent helps me on two problem PCs.
There is no problem with removing Agent using ESET Uninstaller tool in safe mode.
>How does AGENT behaves after failed upgrade attempt - is it still connecting to ERA?
Yes, after fail of uninstallation Agent works and connecting with ERA server fine.
>What is the version history of AGENT installation on problematic computers - i.e. what method was used to deploy AGENT (manual, remote deployment, GPO, SCCM) and which version?
I'm using two methods of Agent deployment:
- EraAgentInstaller.bat
- Server task from ERA server.
and the problem arises and both cases are selective.
Problems arose only with the agent version 6.4.283.0. On computers on which v. 6.4.283.0 was originally installed and on computers that were updated from v. 6.2.190.0.