Marvs I have already tried with "Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +MS=34" . It seemed stable than +MS=90 but the network throughput (data download) came down. There doesn't seem to be any figure mentioned for mtu in the etc/options file it has been commented. What figure was it using earlier and is acceptable (I mean the range) for mtu. Also throw some light on mru and -mru and how any alteration of them could help me. An answer to this I think would also serve as future reference to other linmodem group members as well, as and when they need it. thanks, mohan sai On Sun, 2007-06-10 at 20:05 -0400, Marvin Stodolsky wrote: > Mohan, > > Seems like a poor line quality problem. > Not a driver problem per se. > Go through the points of the PostInstall Howto at > http://132.68.73.235/linmodems/index.html > Within /etc/ppp/options decreasing the MTU size may help > Also try dropping from MS=90 to MS=34 with > Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +MS=34 > > MarvS > > On 6/10/07, Mohan Sai <k_mohansai@xxxxxxx> wrote: > > Hi Marvs: > > > > I had seen this suggestion of yours in response to someone's similar > > problem earlier & already followed those instrutions. My username and > > password were written nicely to /etc/ppp/pap-secrets & chap-secrets > > files.The problem is recurring despite having a proper username and > > passwrod in the above two files. > > > > I am sometimes able to connect but with an unstable connection. At few > > other times, it doesn't even log me in quoting error 16 (a modem has > > hung up). I would like to know how to prevent the modem from hanging by > > itself thereby destabilizing the connection as it happened below. > > > > thanks, > > Mohan Sai > > > > > > On Sat, 2007-06-09 at 22:25 -0400, Marvin Stodolsky wrote: > > > Mohan > > > > > > See > > > In case of a message like: > > > Warning: Could not modify /etc/ppp/pap-secrets: Permission denied > > > see http://linmodems.technion.ac.il/bigarch/archive-sixth/msg04656.html > > > > > > MarvS > > > > > > On 6/9/07, Mohan Sai <k_mohansai@xxxxxxx> wrote: > > > > Hello!! > > > > Can somebody help me solve the below problem wherein I get disconnected > > > > time and again while trying to connect. Any help will be appreciated. > > > > regards, > > > > Mohan Sai > > > > > > > > > > > > mohansai@aumsairam:~$ wvdial --> WvDial: Internet dialer version 1.55 > > > > --> Cannot get information for serial port. > > > > --> Initializing modem. > > > > --> Sending: ATZ > > > > ATZ > > > > OK > > > > --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +MS=90 > > > > ATQ0 V1 E1 S0=0 &C1 &D2 +MS=90 > > > > OK > > > > --> Sending: ATM1 > > > > ATM1 > > > > OK > > > > --> Modem initialized. > > > > --> Sending: ATDT172233 > > > > --> Waiting for carrier. > > > > ATDT172233 > > > > CONNECT 50667 > > > > --> Carrier detected. Starting PPP immediately. > > > > --> Starting pppd at Sun Jun 10 07:16:49 2007 > > > > --> Warning: Could not modify /etc/ppp/pap-secrets: Permission denied > > > > --> --> PAP (Password Authentication Protocol) may be flaky. > > > > --> Warning: Could not modify /etc/ppp/chap-secrets: Permission denied > > > > --> --> CHAP (Challenge Handshake) may be flaky. > > > > --> Pid of pppd: 6160 > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> Using interface ppp0 > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> pppd: �[7f]��@�[05][08]��[05][08] > > > > --> Disconnecting at Sun Jun 10 07:17:20 2007 > > > > --> The PPP daemon has died: A modem hung up the phone (exit code = 16) > > > > --> man pppd explains pppd error codes in more detail. > > > > --> Try again and look into /var/log/messages and the wvdial and pppd > > > > man pages for more information. > > > > > > > > > > > > > > > >
