In Resilio Management Console UI you may notice 1 Error status for a client that expands to Excessive Time Difference.
This error means that the UTC time difference between Management Console and this agent is more than the allowed window of 600 seconds.
Check time, time zones and dates on the Management Console and Agent machines and compare results - they have to be the same:
OS X/Linux in Terminal:
Windows in Command Prompt:
for /f %x in ('wmic path win32_utctime get /format:list ^| findstr "="') do set %x
Run the command with minimal time lag to get more accurate results for comparing.
Once the time is the same, restart Resilio Connect Agent process.