How can I get my modem to work? Error 6: Handle is invalid?

Question

I get an error message Error 6: Handle is invalid. I get this message when it gets to verifying username and password. The second attempt, I get an Error 50: The request is not supported.

WindowsXP Pro SP2 with all updates.

I have done the following:
uninstalled the modem driver both in phone and modems and in device manager.
I ran diagnostic on the modem and no errors were reported
I rebooted every time I do something.
I went to msconfig and did a diagnostic reboot.
I scanned for virus, malware, and adaware nothing
I did sfc /scannow
I have reinstalled the driver

this problem happened right after an upgrade from Windows XP Home to XP Professional. The modem worked fine before upgrade but the problem before was the wireless network which now works.

Answer 1

When you tried to dial up to the Internet, you received the error "Error
6: the handle is invalid."

This issue can occur if the RAS or NDISWAN component is corrupted. The
problem can occur after removing some 3rd party program such as AT&T
dial up program because the uninstallation program may not be designed
very well. To troubleshoot this issue, please perform the following
steps.

1. Remove Modem driver from the Device Manager.

- Right click My Computer and select Properties.

- Click on Hardware, Device Manager. Click on + sign by modem, right click and
uninstall modem.

2. Delete the dial up connections and remove 3rd party RAS related
program if any.

3. Run the attached file to install RArepair.exe, then run RArepair.exe to
reinstall RAS components. Reboot.

4. Reinstall Modem driver and the 3rd party dial up program if it is
required by your ISP.

5. Recreate the dial up connection and check if the problem is resolved.

Answer 2

Scan your system with an updated version of AVG and after this process scan again with a good registry cleaner tool such as Reginout. The problem will surely be solved.

Answer 3

are you trying to get the wireless to get online thru a modem? or do you have broadband for the internet, don't inderstand the problem