Troubleshooting Guide - FarSync WAN T-Series - Linux

Problem Symptom	Possible Cause(s)	Action
No response from ping	Cable not plugged in	Make sure this cable is inserted to correct port A or B on the T2P and A, B, C or D on the T4P
	Remote address not correctly specified	Check that you are pinging the address as specified in the POINTOPOINT configuration parameter
	Clock not present	Check that the correct (port wise) green LED is flashing while attempting to ping. If you have configured the clock source as external, then you are not receiving clock from your Service Provider, or you have a cable problem.