I have changed locations from Florence, OR, where I was able to access an ISP via Linux to Port Orford, OR, where I can't.

Here's the problem:

1.) I have configured wvdial with the phone # of my Port Orford ISP. And placed the ISP's DNS (12.45.56.2) in a configuration file (can't recall name of file - think it is /etc/resolv.conf)

2.) I have brought up a terminal window and typed "wvdial Harborside"

3.) I see in my screen:
Connect at 50,666/ARQ/V90/LAPM/V42BIS
Carrier detected
Port Orford dial 1
Login:
Looks like a login prompt
Sending rdaves@harborside.com
Password
Looks like a password prompt
po-dial1%
Hmm...a prompt, sending "ppp"
ppp
Requested service not authorized
Don't know what to do. Starting pppd and hoping for the best
Starting PPPD
PPP Daemon has died (exit code=10)
Disconnecting

4.) /var/log/messages says:
pppd 2.4.0 started by root, uid 0
using interface ppp0
Connect: ppp0 , <--> /dev/ttyS2
LCP: timeout sending Config-Requests
Connection terminated
Receive serial link is not 8-bitclean
Problem: all had bit 7 set to 0
Exit

Different ISP and same username???

That was a typo. I corrected it.

I am able to dial the new ISP and listen to all the beeps and so forth while they shake hands. But I never get totally connected.
I called their help folks, and they do not support Unix.
The last ISP that I had did support Unix, and it was fairly easy to get connected.

Upon surfing around, I find many, many references to the same problem, however, there are so many, that I am unable to determine which problem belongs to me.

I am sure it has something to do with the new ISP equipment or protocol, but without help from them, I am unable to determine anything.

I created /usr/sbin/ppp-on and /etc/ppp/ppp-on-dialer
then typed /usr/sbin/ppp-on &
And got this
# /usr/sbin/ppp-on &
[1] 2346
# Serial connection established
using channel 2
Using interface ppp0
Connect: ppp0 <--> /dev/ttyS2
sent [LCP ConfReq id=0x1 <asyncmap 0x20a0000> <magic 0xb32e3070> <pcomp> accomp>]
this message was repeated 9-times, 10 times, total
LCP: timeout sending Config-Requests
Connection Terminated
Receive serial link is not 8-bit clean:
Problem: all had bit 7 set to 0

Same results as before. It appears there is a problem sending Config Requests.

Any suggestions?

I finally found an answer.
Usint rp-3 I went into 'advanced' and unchecked the box which says "let PPP perform authentication"
Apparently, this turned off the signals being sent by ppp and not recognized.

That's a problem/resolution worth noting.