I can't seem to get ppp to hold an internet connection open for longer than a few seconds.
I'm using gentoo 2004 with a D480 connexant modem. I purchased the linuxant modem which did work with slackware (the reason to switching to gentoo is another story).
I'm aware linuxant drivers have issues with AC '97 sound drivers so I made sure sound related modules were not installed in the kernel.
I've used gnome-ppp, kppp and wvdial and each have the same problem. I connect, then shortly after I get disconnected - message log tells me the Authorization failed but the same username and password works in wondow$. I've added some details of my setup in the hope that someone can pick the fault...



[/etc/resolv.conf]


nameserver 202.162.77.160
nameserver 202.162.77.161
search bizmail.com.au
----------------------------------------------

[/etc/wvdial.conf]


[Dialer Defaults]
Modem = /dev/modem
Baud = 460800
Init1 = ATZ
Init2 = AT&FE0V1S0=0L3&C1&D2+MR=2;+DR=1;+ER=1;W2
Init3 = ATS7=60L1M1+ES=3,0,2;+DS=3;+IFC=2,2;X3
ISDN = 0
Modem Type = Analog Modem
Phone = <my dialup number to the ISP here>
Stupid mode = on
Username = <my username here>
Password = <my password here>

*note:
I have tried the wvdial config default init strings as well without success
I have also tried this setup stupid mode off

---------------------------------------------------

[/etc/ppp/options]

noauth
modem
crtscts
lock

----------------------------------------------------

[/etc/ppp/pap-secrets]
"<my user name here>" * "<my password here>"

----------------------------------------------------



[/var/log/everything/current]

--snip--
Dec 4 19:43:17 [pppd] pppd 2.4.1 started by root, uid 0
Dec 4 19:43:17 [pppd] Using interface ppp0
Dec 4 19:43:17 [pppd] Connect: ppp0 <--> /dev/ttySHSF0
Dec 4 19:43:20 [pppd] Hangup (SIGHUP)
Dec 4 19:43:20 [pppd] Modem hangup
Dec 4 19:43:20 [pppd] Connection terminated.
Dec 4 19:43:20 [pppd] Exit.
--snip--


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should +pap and/or +chap be included in the /etc/ppp/options??

the info I found online seemed conflicting which is why Im a bit confused about this.

I discovered through tinkering that it needs +chap

You also might want to change that setting of 460800 to 115200 unless the modem documentation states that it has something other than a 16550A UART.