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SSL Remote Access slow speed on internal servers

Hey everybody!

Yesterday I started testing remote access (SSL). This all works fine - The DNS resolves all internal hostnames and also accessing internal servers isn't an issue.

However when I use one of the main programs we use in our company, working with it is really slow.

The program connects to a SQL-Server in the LAN. When I'm on site this takes no longer than a few seconds - using SSL it's stuck for almost a minute.

So I tried copying some files back and forth and realized it wasn't really a speed issue.

 

Also I would say the firewall is set-up correctly.

Since I had slow speed using the VPN on the first try I changed the protocol to TCP and changed the Port, too.

Compression is enabled.

 

Anyone else ran in this problem and was able to fix it?

Searched for answers for hours but couldn't find anything matching my problem.

 

It only really happens when other programs are accessing internal servers.

 

Cheers Paul



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  • Hi Paul,

    Here are the fastest possible VPN settings.

    1. Using a UDP port for the connection

    2. Encryption: DES-EDE3-CBC

    3. Authentication: MD5

    4. Key Size: 1024

    5. Having 'Compress SSL VPN traffic' check both ways enabled/disabled.

    Import the SSL client config after the change.

    Hope that helps.

    Sachin Gurung
    Team Lead | Sophos Technical Support
    Knowledge Base  |  @SophosSupport  |  Video tutorials
    Remember to like a post.  If a post (on a question thread) solves your question use the 'This helped me' link.

  • Hi sachingurung,

     

    If I change my settings to your recommended settings. do i need to redownload the remote client profile?

     

    Do you know if there is a way to create a test profile for remote access?

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