First you need to telnet into the 3com router and login:-
login: admin
Password:
3Com-DSL>
Once you have the prompt, type show ppp and you will see that the Echo retry is set to 8
3Com-DSL>show ppp
PPP SETTINGS
Inbound Authentication PAP or CHAP: EITHER
Echo Retry Limit: 8
3Com-DSL>
You can change this to 0 which disables the Echo retry.
To do this type the following:
3Com-DSL>set ppp echo 0
3Com-DSL>
If you type show ppp you will now see that it has changed to 0
3Com-DSL>show ppp
PPP SETTINGS
Inbound Authentication PAP or CHAP: EITHER
Echo Retry Limit: 0
3Com-DSL>
Now close the telnet and check the connection status
