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SSL VPN (Remote Access) Performance Issues - Tunnel Access, DNS and Speed

Randy Wade

I have successfully installed and configured the SSL VPN client on a few users' laptops. However, I am getting some complaints regarding performance. Should "Use as default gateway" be enabled or disabled? If I want to allow access to devices on the local network should I be using the local DNS as the primary DNS server? I have also noticed that the Sophos SSL VPN Ethernet adapter is using a fast Ethernet connection, is it possible to change this to use gigabit?



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  • 0

    Use as default gateway will force all traffic to go back to the XG in order to get to the internet. This will have a negative effect on internet performance. Try using udp and turn off compression to help with general performance.

    Be aware users may be comparing their experience against being in the office, if they are trying to use apps hosted in the LAN behind XG it will seem much worse from user perspective. Find out exactly what it is which is not performing as expected.

  • 0 in reply to Shaun_

    Thank you for your response, I will try your suggestions. We are an architectural design firm and all our remote employees use the VPN to access AutoCad files. Therefore, the slow performance is regarding access files from our local file server, not internet performance. 

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  • 0 in reply to Shaun_

    Thank you for your response, I will try your suggestions. We are an architectural design firm and all our remote employees use the VPN to access AutoCad files. Therefore, the slow performance is regarding access files from our local file server, not internet performance. 

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