pppd question

[Chittaranjan Mandal <c.mandal@kingston.ac.uk>]

I had a working dial-up ppp link with an ISP provider.
Recently, I am failing to setup the connection.
I am not able to figure up what the problem is.
The setup I am using now is just the same as before.
I have appended a transcript of the logged messages.
Would you like to take a look to see what could be going wrong.

Aug 12 07:27:24 merak chat[536]: Checking authorization, Please wail ...^M
Aug 12 07:27:24 merak chat[536]: Checking authorization, Please wail ...^M
Aug 12 07:27:24 merak chat[536]: Username: -- got it
Aug 12 07:27:24 merak chat[536]: send (<user name>^M)
Aug 12 07:27:24 merak chat[536]: expect (word:)
Aug 12 07:27:24 merak chat[536]: <user name>^M
Aug 12 07:27:24 merak chat[536]: send (<password>^M)
Aug 12 07:27:24 merak pppd[535]: Serial connection established.
Aug 12 07:27:25 merak pppd[535]: Using interface ppp0
Aug 12 07:27:25 merak pppd[535]: Connect: ppp0 <--> /dev/ttyS1
Aug 12 07:27:55 merak pppd[535]: LCP: timeout sending
Aug 12 07:27:55 merak pppd[535]: Connection terminated.
Aug 12 07:27:55 merak pppd[535]: Receive serial link is not 80bit clean:
Aug 12 07:27:55 merak pppd[535]: Problem: all had bit 7 set to 0
Aug 12 07:27:55 merak pppd[535]: Exit.

Thanks,
Chitta