The “vpn unsuccessful domain name resolution” is a problem that has been present for a while. There are many solutions to fix the issue, but one of them is to use the “nvramtool” command.
When utilizing Cisco AnyConnect Secure Mobility Client to remotely connect to the office, a frequent issue that may occur is The VPN connection failed due to unsuccessful domain name resolution.
It goes without saying that DNS problems prevent you from setting up a successful VPN connection using Cisco.
Normally, you should get in touch with your system administrator and ask for help if you run into issues with your company’s VPN, such as AnyConnect installation failure.
However, as this problem is often brought on by incorrect client-side settings, you may attempt the following fixes to resolve it.
1. Modify your DNS configurations
- Right-click the Start button in Windows 10.
- Go to Network Connections > Change adapter options.
- Select Properties by right-clicking your network adapter.
- Internet Protocol Version 4 (TCP/IPv4) should be double-clicked.
- Choose Automatically get DNS server address.
- Select OK.
Using unique DNS configurations like Google Public DNS, OpenDNS, or Cloudflare may cause the DNS issue. Static DNS servers may conflict with VPN clients like Cisco VPN.
However, you may quickly resolve this problem by returning the DNS settings on your computer to their default state, which calls for utilizing the DNS servers provided by your ISP. You should get in touch with your ISP if the issue continues.
However, you should consider utilizing alternative static DNS servers if your ISP’s DNS servers are sluggish by default and that is really the reason you utilized custom DNS in the first place.
2. Examine another VPN provider
We advise you to test a different VPN if you often have DNS-related problems. Find a reputable company that is safe and current.
Given that Private Internet Access (PIA) is considered to offer excellent DNS security, we strongly advise it in this respect.
This application allows you to arrange port forwarding, create your own unique DNS setup, and more. It also provides extremely secure DNS options.
Additionally, you should be aware that PIA has over 35 000 servers in its worldwide server coverage. This guarantees secure, quick communications regardless of location.
A comprehensive VPN service, Private Internet Access offers limitless bandwidth, strong encryption, a dedicated ad and malware blocker, and more. Additionally, it is open source, which increases its stability and security compared to other app kinds.
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3. Make anyconnect.xml file repairs.
Sometimes AnyConnect’s XML profiles are corrupt, which results in a failed domain name resolution error, breaking the VPN connection. But by reinstalling AnyConnect, you ought to be able to resolve this issue.
A different area may be selected, a different VPN gateway can be specified, and the DNS name and port address in the XML file can be checked to determine whether they are accurate.
4. Install your operating system once again.
If none of the aforementioned fixes work to resolve the VPN connection problem caused by a failed domain name resolution, make a backup of all your crucial information and programs before reinstalling Windows 10 on your computer.
This will reset all system settings to their initial positions. As an alternative, you may do a clean install using the Refresh Tool.
In conclusion, the remedies we offered above ought to be sufficient to resolve the Cisco AnyConnect VPN issue caused by a failed domain name resolution on your Windows computer.
If the fault persists, you should think about abandoning Cisco VPN and switching to another business VPN provider.
The “the vpn connection failed due to unsuccessful domain name resolution cisco anyconnect windows 10” is a problem that may occur when trying to connect to your VPN. There are many causes of this error, but the most common is a DNS issue on your computer or router.
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