Regarding  CRC Error........Please answer this

Posted on 2001-07-05
Last Modified: 2006-11-17
helo sir,

we have given an ISDN Dial-up(64k) connection to a customer.From our side we r really pumping 64k, but at the end(at customer) we r getting only between 10k-20k only.When we monitor our dial-up connection through performance monitor in WINDOWS NT(clients machine) so many CRC errors have been found(shown by monitor).

Please suggest me how to rectify this problem.

Question by:vasanth
LVL 41

Expert Comment

ID: 6257888
CRC errors are usually caused by noise, either in the line or trouble with the modem

Expert Comment

ID: 6261350
Like  stevenlewis says, first try to swap the modem (or use it from another location), if it proves OK, you have to replace the wiring.

Author Comment

ID: 6261400
Thank u very much for ur great response.

but still i have another problem. when the customer connect to another ISP, no CRC errors are being generated (but the band width is low (15k-20k) ).So i confused a lot.

So please give me a conclusion.


What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

LVL 41

Accepted Solution

stevenlewis earned 50 total points
ID: 6261691
>no CRC errors are being
generated (but the band width is low (15k-20k)
another indication of noise.
check your  pri's, and have them have the phone co check thier lines
also see here
and here

Expert Comment

ID: 6264911
Please check the grounding of the NT device on the client's side. Without proper grounding, the problem will not be resolved.

Author Comment

ID: 6266619
Thank u very much for ur  valuable suggestions.

LVL 10

Expert Comment

ID: 6272300
see how you have routed the cables....
LVL 41

Expert Comment

ID: 7533925
why the "C"?

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
fibre channel switch - sfp needed? 2 36
Setting up a VPN 60 136
What To Do With Surplus Rack Server, Controller and Switches? 13 49
Advertise subnet not directly attached 6 29
Even if you have implemented a Mobile Device Management solution company wide, it is a good idea to make sure you are taking into account all of the major risks to your electronic protected health information (ePHI).
This article will inform Clients about common and important expectations from the freelancers (Experts) who are looking at your Gig.
Internet Business Fax to Email Made Easy - With  eFax Corporate (, you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor ( If you're interested in additional methods for monitoring bandwidt…

813 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now