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Re: [SLUG] KPPP external modem " unexpected disconnections" forced by remote end.


Hi Roger,

Do you have a phone on the same line?

I was suffering a similar problem with my dialup account (it was disconnecting after about 20 min all the time). I discovered that apparently some older touch-tone telephones can cause enough interference on the line to cause a disconection. After I removed my telephone from the double adapter I was using to split the phone line I had no problems.

Cheers,

Brad
Roger Salisbury wrote:

Hi sluggers
Someone may had the very same modem problem listed below. IE a "^@" sequence sent from the remote end. (ISP=bigpond) I am running RedHat 9 and having trouble with frequent unexpected disconnections with a bigpond dialup account. Have tried different dial up 56 external modems with the exactly same problem. The hint given belopw is for some reason always a "^@" sent from the remote end. I nearly always get cutoff within 15 minutes, although the longest is about 35 minutes. Any help greatly appreciated Thanks
Roger

KPPP error message:
###########################################################
Notice that the remote system has sent the following message:
"^@"
This may give you a hint why the the connection has failed.
Check that you supplied the correct username and password!
#############################################################
Extra Info:
ATI responses (won't mean much) & log
#############################################################
ATI :  33600
ATI 3:  V2.200-V34_ACF_DS1
ATI 6:  RCV336DPFSP Rev 44BC
##################################################################### ct 29 00:11:26 localhost pppd[4701]: pppd 2.4.1 started by root, uid 0
Oct 29 00:11:26 localhost pppd[4701]: Using interface ppp0
Oct 29 00:11:26 localhost pppd[4701]: Connect: ppp0 <--> /dev/ttyS1
Oct 29 00:11:27 localhost pppd[4701]: Remote message: ^@
Oct 29 00:11:27 localhost pppd[4701]: local  IP address 203.40.128.204
Oct 29 00:11:27 localhost pppd[4701]: remote IP address 144.130.139.242
Oct 29 00:11:27 localhost pppd[4701]: primary   DNS address 203.49.70.92
Oct 29 00:11:27 localhost pppd[4701]: secondary DNS address 139.134.2.190
Oct 29 00:24:22 localhost pppd[4701]: Hangup (SIGHUP)
Oct 29 00:24:22 localhost pppd[4701]: Modem hangup
Oct 29 00:24:22 localhost pppd[4701]: Connection terminated.
Oct 29 00:24:22 localhost pppd[4701]: Connect time 13.0 minutes.
Oct 29 00:24:22 localhost pppd[4701]: Sent 45144 bytes, received 7870 bytes.
Oct 29 00:24:22 localhost pppd[4701]: Exit.
#####################################################################