Windows Bitdefender Vpn Error Code 9 Cannot Be Solved ?

Hi,

I think the problem is bigger then something general, because I'm having the same issue. Followed literally all the steps mentioned in the Windows VPN solutions link that's also mentioned by @Parimalnakade

But still the same problem. It's only on Windows, not on android by the look of it, as it's working correctly there. I also tried switching networks / ethernet etc... nothing helps. Always error 9. If somebody else is also having these issues out of a sudden on Windows, please report.

Hello,

We've undergone some maintenance for our VPN servers, but everything should be ok now. In the event the error persists, please do let us know.

Regards,

Alex

Hello @jguymon01,

Have you checked the below possible causes?

• No Internet – Make sure your device is connected to the Internet with a fast and stable connection.
• Firewall – Check that your firewall isn’t blocking the VPN. If you’re not sure, look in your router’s manual, contact the manufacturer or your Internet provider.
• Another VPN or Proxy – If you’re running another VPN or Proxy, disable it when trying to connect.
• Public Wi-Fi (like in a hotel, school, or office) – Contact the network administrator to see if they can change the firewall settings and allow the VPN connection.
• Port 443 is blocked – Port 443 UDP must be open for Bitdefender VPN to work. Access your router’s settings by typing its IP address into a web browser (refer to your router’s manual if necessary), find “Port Forwarding” or a similar section, and ensure Port 443 with UDP protocol is allowed. Save settings, then restart router and computer.

Apart from these, conflicts with other security or VPN software installed on your device might interfere with Bitdefender VPN, so make sure to check this as well. If none of these reasons are behind the error 9 code, contacting Bitdefender customer support for further assistance would be advisable. Simply reply on the open case and mention the troubleshooting steps already taken and make sure to include the following information that could help the engineers during troubleshooting:

• The OS on which the VPN is running.
• The affected account.
• Whether the problem occurs on a
  specific location or all locations?
• IP of the affected server(s), if applicable
• If using standalone VPN or VPN in BMS
• Whether the problem occurs only on mobile data or only on Wi-Fi or present on both.
  Preferably try multiple networks.
• App version.

I hope the information is helpful.

Regards,

Alex

Same situation with Ahmaed. I have been using it for awhile now and never really had any issues. It is connecting fine on my mobile Android device but keeps popping up on my Windows 10 computer with an Error 9. It was working just fine last night and hasn't worked since this morning. Is there an update or glitch that is causing this from BitDefender's end?

Yes, it looks like reinstalling BitDefender VPN does not reinstall the TAP driver. You need to go find a copy of it, install it, and then it should work.

At least that's what worked for me.

I've been having this issue on and off for months. VPN stopped connecting completely yesterday after a Windows (11) update and still not connecting today. Error Code 9. Always error code 9.

I've taken all the steps in various articles and even reset network and adapters, clearing dns cache but still no joy. :(