I am using Knoppix 5.0 live CD & I can't connect to the internet via KPPP or wvdial. For a modem, I use an older Boost Mobile prepaid phone connected by USB cable to laptop. For over a year, I have used it with Windows XP just fine. I also recently downloaded PCLinuxOS 2007 live CD, and used KPPP to connect to the internet just fine. So I know my configuration / settings are fine.

I have searched high and low on the web for a solution, but haven't found one. I tried it on a Knoppix 3.7 live CD, but it didn't even list the ttyACM0 that I needed. If one of the newer versions of Knoppix will likely work, then I will get a hold of it, but downloading 5.1 takes a long time on my slow internet and getting the DVD for 5.3 will take several days via mail, so I can't try them out easily.

Here are the messages I get in the Terminal Window:

knoppix@1[knoppix]$ kppp
Opener: received SetSecret
Opener: received SetSecret
Opener: received OpenLock

Opener: received OpenDevice
Opener: received ExecPPPDaemon
Kernel supports ppp alright.
In parent: pppd pid 3693
Couldn't find interface ppp0: No such device
Opener: received KillPPPDaemon
In killpppd(): Sending SIGTERM to 3693
It was pppd that died
pppd exited with return value 5
Sending 3689 a SIGUSR1
Opener: received RemoveSecret
Opener: received RemoveSecret
Opener: received OpenResolv
Opener: received OpenResolv
Opener: received RemoveLock
Opener: received PPPDExitStatus
And for wvdial:
knoppix@5[knoppix]$ wvdial
--> WvDial: Internet dialer version 1.56
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: AT&F&D2&C1X4S0=0S7=120Q0E1V1
AT&F&D2&C1X4S0=0S7=120Q0E1V1
OK
--> Modem initialized.
--> Sending: ATDTS=2#777
--> Waiting for carrier.
ATDTS=2#777
CONNECT
~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%} }4[19]~
--> Carrier detected. Waiting for prompt.
--> Connected, but carrier signal lost! Retrying...
--> Sending: ATDTS=2#777
--> Waiting for carrier.
~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%}&CSAh}"}&} } } } }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%} }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%}&CSAh}"}&} } } } }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%} }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%}&CSAh}"}&} } } } }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%} }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%}&CSAh}"}&} } } } }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%} }4[19]~~[7f]}#@!}!}!} }8}'}"}(}"}!}$}%\}%}&CSAh}"}&} } } } }4[19]~
OK
--> Timed out while dialing. Trying again.
--> Sending: ATDTS=2#777
--> Waiting for carrier.
ATDTS=2#777
--> Timed out while dialing. Trying again.
--> Sending: ATDTS=2#777
--> Waiting for carrier.
ATDTS=2#777
Here is what I think is the relevant portion of dmesg:
PCI: Found IRQ 5 for device 0000:00:08.0
PCI: Sharing IRQ 5 with 0000:00:08.1
ts: Compaq touchscreen protocol output
cdc_acm 1-2:1.0: ttyACM0: USB ACM device
usbcore: registered new driver cdc_acm
drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver for USB modems and ISDN adapters
Even if you don't know the solution, if someone can just help me identify the problem, maybe I can Google that and find a solution. As I said, I'm a newbie so I can't even venture a guess at what the problem is.

Thanks in advance for any help, and if you need more info, let me know & I'll post it ASAP!