Go to Windows Start menu in the lower-left corner → type in ncpa.cpL and hit Enter → double-click your active adapter (network) → choose Properties. Open Control Panel → Network and Internet → Network and Sharing Center → Change adapter settings → double-click your active adapter (network) → choose Properties. How to change your DNS to see if that’s the problem: If you are currently using the default DNS (Domain Name System) from your Internet provider, switch to a third-party DNS server that might be faster and reliable. 
Reconnect to Bitdefender VPN after the PC has restarted and check if the situation has been resolved. Shutting down Windows and rebooting your computer can address such issues. Sometimes the operating system or other services and software dependencies do not start up correctly. Begin by clicking the name of your operating system to learn more: No matter the reason, we’ll show you exactly how to deal with any VPN error code and successfully connect to Bitdefender VPN in no time. Depending on the device you’re currently using, the port 443 UDP must be open.
The port used for the VPN connection is closed. You need to contact the network administrator to try and change their firewall settings. which may have blocked the ports required by Bitdefender VPN. You’re on a public Wi-Fi such as work, school, airport, etc. In this case, disable the other VPN/Proxy solution. 
Another VPN or Proxy is running when you try to connect. If you are not sure if your router comes with a dedicated firewall or how to turn it off please refer to its manual, contact the manufacturer or your ISP. 3rd party firewall software, router’s built-in firewall). A strictly configured firewall is preventing VPN connectivity (e.g. Make sure you have Internet access before using Bitdefender VPN. You are not connected to the Internet and can’t access the Internet via Wi-Fi or Ethernet cable. There are a few general causes for connection errors encountered by Bitdefender VPN: Error code: 2 | Error code: 4 | Error code: 9 | Error code: 10 | Error code: 12 | Error code: 99 | Error code 182 | Failed to get server list, please try again later. These are some of the error messages you may encounter when connecting to Bitdefender VPN:Īn error occurred while trying to connect. Here you’ll find quick-fix solutions to common Bitdefender VPN connection errors on Windows, macOS, Android, iOS, or iPadOS.
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