Hope there has not been any application deployed on this agent yet, which really complicates things.
When starting IIS, use browser to hit web site, ensure LLAWP process is UP.
If LLAWP is not UP, then there won't be any logs generated.
Trusted host entry can only prove this agent is registered, it does not confirm LLAWP is running.
LLAWP may not run for different reasons.
LLAWP process has to have permission to access and write to log directory.
Review your windows event viewer too for any warn/error.
Regards,
Hongxu