Are you working on requirement 6.5.10?
LEM is mostly just basic Linux under the hood so perhaps this guide would be of some assistance? Don't know offhand if they do anything unusual that would interfere with this but this explains how to set timeouts in Linux.
How to set an SSH timeout | GoDaddy Help
Support can get you into root on the appliance but they will probably give you some disclaimers about anything you break is yours to fix, so make sure you take a snapshot before.
Loop1 Systems: SolarWinds Training and Professional Services
- LinkedIN: Loop1 Systems
- Facebook: Loop1 Systems
- Twitter: @Loop1Systems