modem not work

Posted on 1999-12-12
Medium Priority
Last Modified: 2012-05-04
I try to connect to my isp with DIP.
It seems connected, and I typed login name and password. However, it then said "NO CARRIER",
what does it mean?
How can I connect to the internet?
Question by:mwhuen
  • 5
  • 2
  • 2
  • +2

Expert Comment

ID: 2276390
It means that either you timed out the login prompt and the isp hungup or if you never got a login prompt it didn't recognize your authentication method.....can you offer more details concerning the login methods your isp utilizes....chap or pap or whatever else....

Author Comment

ID: 2276747
Thank you for your response, but I really don't know how to do.

I don't know what login method my isp utilizes,

When I use win98, i only need to type dial number, login name, and then password, and then I can login in, and connect to the internet.

I use DIP to connect, it doesn't ask me what login method too....

after i fill in login name and pasword, lots of symbols appear,
and then finally


Expert Comment

ID: 2276850
the best way is to use chat instead of dip.
try looking in the http://linux.tecnogi.com/connection.html even if in italian it could help you.

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.


Author Comment

ID: 2278731
let me try, thank you

Expert Comment

ID: 2281708
the funny characters that appear are the LCP negotiaiton looking to connect....without a response from you end it times out and drops the carrier.  when you seen the symbols type in pppd and see if it completes the connection.

Author Comment

ID: 2286103
i want to know what are the causes of my problem,
is it because my linux system has problem?
do i need to re-install it and install all software?
or  is it because my modem has problem?
do i need to buy a new good modem?
or is it because the software i used (DIP) is not good?
do i need to change to a more easy software?

i think the login method of my isp is PPP(pap).
Please help.
thank you.

Expert Comment

ID: 2287631
Can you answer a few questions so that I can properly formulate an answer for you?

1.  Which version and distribution of linux do you have?

2.  Can you use pppd?  In other words, does it exist on your system?  (You can find out by typing "whereis pppd" at the console when logged in as root.  It should show something like "pppd: /sbin/pppd")  Tell me what it shows.

3.  What kind of modem do you have?  Tell me the exact make, model number and company.  (example: US Robotics 28.8 Sportster external faxmodem)  Is it internal or external?


Author Comment

ID: 2294698
1,I use red hat 6.0.
2,i can use pppd
3, i use a modem of
faxenger 56sp external faxmodem.
here is its homepage:

thand you.

Author Comment

ID: 2299669
in fact, i didn't install any driver of my modem in linux system, do i need to install ?


Accepted Solution

sirwnstn earned 200 total points
ID: 2302568
I've never heard of such a modem, but since it is an external modem, it should work with linux. (Unless the standards in Hong Kong are different)

Follow all the instructions in this link:


It will tell in great detail how to use pppd to connect to the internet.

Expert Comment

ID: 2303749
Yeah - you might have to enter a start command after your username and password:

For example:

(in a terminal based logon)

User:  yourname
Password:  passwd

#prompt_here:> ppp

Typing ppp will start the remote ppp session on the port you connected to and instialise pppd on yours.  (You'll then be able to type 'ifconfig' and get your IP etc.)

Featured Post

[Webinar] Kill tickets & tabs using PowerShell

Are you tired of cycling through the same browser tabs everyday to close the same repetitive tickets? In this webinar JumpCloud will show how you can leverage RESTful APIs to build your own PowerShell modules to kill tickets & tabs using the PowerShell command Invoke-RestMethod.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
The video will let you know the exact process to import OST/PST files to the cloud based Office 365 mailboxes. Using Kernel Import PST to Office 365 tool, one can quickly import numerous OST/PST files to Office 365. Besides this, the tool also comes…
Suggested Courses
Course of the Month6 days, 22 hours left to enroll

593 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question