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1.
 Am I dialing the right number?

2.

 Test your phone connection

3.

 How to check your modem setup

4.

 Check your Dial up Settings

5.

 How to resolve "The page cannot be displayed" error

Common Error Codes

6.

Error 691 - Access denied because username and/or password is invalid on the domain .

7.

 Error 680 - No dial tone

8.

 Error 797: The connection failed because the modem or other connecting device failed

9.

 Error 645 - Authentication Error
10.
 Error 718/721 - PPP Error

11.

 Error 678 -The Computer You Are Dialing Into Is Not Responding

12.

 Error 619/629 - The port was disconnected by the remote computer

13.

 Error 631 -The port was disconnected by the user

14.

 Error 633 -The port is already in use / open

15.

 Intermittent Disconnection
Coollink ISP & TV Cable Providers - Plot 267A Etim Inyang Crescent, Lagos, Nigeria.- Contact us at info@coollink.us Telephone information: 234-01-2623051; 234-01-2623052; 234-01-2623053; 234-01-2623054 extensions 154 -155
Abuja Office: Plot 592, Independence Avenue,
South City Centre Abuja, FCT- - Abuja Tel:234-09-2340057; 234-09-2340074; 234-09-2340057 :