Dear all,
RT, it's very strange. Did any one meet that situation please?
Internet----Gateway(Cisco router)----CiscoSwitch----My end point
When my end point is a PC connected, and ping to the gateway, it's fine. But when it switched back to the C851, after ping the gateway, the return of !!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!.!!!., with 25% loss happened.
and I really don't know how could that happened.
Thanks for your kind Tips in advance.
:-)