15 common Windows Error Codes and how to fix them

Error #2

Message: System cannot find specified file

Solution: You should reinstall NCP & DUN

Error #5

Message: Access Denied

Solution:

1. Make sure you've entered the correct username and password

2. Check that the option accept any authentication including clear text" is activated

Error #5

Message: Invalid Procedure Call

Solution: Network components must be installed again

Error #5

Message: Access Denied

Solution:

1. Make sure you've entered the correct username and password

2. Check that the option accept any authentication including clear text" is activated

Error #5

Message: Invalid Procedure Call

Solution: Network components must be installed again

 

Error #6

Message: Stack Overflow

Solution:

1. Try cold booting your computer

2. If this does not work, the problem might come from your RAM or the Swap file

Error #71

Message: No more connections are allowed

Solution: Already someone connected under your account and in this case, call the Internet service to bump the ghost program off

Error #600

Message: An operation is pending

Solution: Try rebooting your computer and also make sure that no program is running on the modem. Additionally, make sure your computer is Spyware free.

Error #20

Message: The system cannot find the specified device

Solution:

Make sure that the right modem has been selected, if not reinstall it.

Error #608

Message: The device does not exist.

Solution: Check that the modem is working properly, or reinstall it. If not, do the modem diagnostics and set up the correct drivers.

Error #621

Message: Cannot open/load the phone book file.

Solution: Install Blue Frog connection software again

Error #645

Message: Internal authentication error.

Solution: Try to reboot your computer, else, try to reinstall your modem drivers

Error #604

Message: Wrong information specified.

Solution:

Enter the username, password properly and set up the dialler again. If it doesn't work, you can try to reinstall your modem once again.

Error #607

Message: The event is invalid.

Solution:

In this case, try rebooting your system and check whether the dialler/network settings have been correctly configured. Else install RAS/DUN again

Error #635

Message: Unknown Error

Solution: Try to reboot your computer or Install Blue Frog connection software again

Error #638

Message: The request has timed out.

Solution: Try to reboot your computer or Install Blue Frog connection software again

Error #636

Message: The wrong device is attached to the port

Solution: Check your settings if you have chosen the right modem