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Why do I experience slow application response after connecting with VPN?

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Why do I experience slow application response after connecting with VPN?

apontiflette
The VPN connection is PPTP using ADSL to a Head Office. The Head Office also uses ADSL 10Mbps down, 768Kbps up. There is no problem establishing connection using "dyndns", but sometimes apps work fine, then whenever I try to re-open the same apps, it is slow to respond.

One database application uses a web browser (IE8 or Firefox) to login but even that has a slow response.

I am thinking that the server may be responsible. (DELL Poweredge Duo Core 3060 Xeon Processor 840 4GB DDR2 667MHz. Can anyone suggest a possible solution?

Anthony Pontiflette
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    0 Votes
    Clidash

    Anthony,

    - Is this happening on specific time (ex: when your colleagues in the office).
    - Are there several users who use VPN at the same time.
    - Do you have any other devices on your network that affects your bandwidth.
    - Have you tried to untick option "Use default gateway on remote network" in VPN settings on your PC for testing.

    ADSL is optimised for fast download speeds.

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    apontiflette

    Hi Clidash.

    The VPN connection is only made to access reports, print then logoff. But when I tested it, no other users were accessing the VPN.

    NOTES:
    The VPN server also provides internet access for the Head Office network;
    The 'Use default gateway on remote network' option is unchecked;
    However, I am also running GFI Web Monitor and AVG Internet Security;
    I am checking the server for memory or processor performance issues (Task Manager does not help at all);
    The previous version of the database with a GUI did not have this problem so could IIS on the server cause slow performance?

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    0 Votes
    Clidash

    Anthony,

    Can you try to access reports from a PC in the local network in the office, to troubleshoot if it's network performance or hardware performance.
    - Access GUI locally on server.
    - Reboot / restart IIS service.
    - Compare Hardware Requirements for the software you use.

    Check out Process Explorer for detailed monitoring (free):
    http://technet.microsoft.com/en-us/sysinternals/bb896653

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    apontiflette

    Thanks.

    I'll download it now and give you a heads up by this evening.
    No issues with local network performance when accessing reports.
    Database was built in MS Access but .mdb file is currently 526MB and growing.

  • +
    0 Votes
    Clidash

    Anthony,

    - Is this happening on specific time (ex: when your colleagues in the office).
    - Are there several users who use VPN at the same time.
    - Do you have any other devices on your network that affects your bandwidth.
    - Have you tried to untick option "Use default gateway on remote network" in VPN settings on your PC for testing.

    ADSL is optimised for fast download speeds.

    +
    0 Votes
    apontiflette

    Hi Clidash.

    The VPN connection is only made to access reports, print then logoff. But when I tested it, no other users were accessing the VPN.

    NOTES:
    The VPN server also provides internet access for the Head Office network;
    The 'Use default gateway on remote network' option is unchecked;
    However, I am also running GFI Web Monitor and AVG Internet Security;
    I am checking the server for memory or processor performance issues (Task Manager does not help at all);
    The previous version of the database with a GUI did not have this problem so could IIS on the server cause slow performance?

    +
    0 Votes
    Clidash

    Anthony,

    Can you try to access reports from a PC in the local network in the office, to troubleshoot if it's network performance or hardware performance.
    - Access GUI locally on server.
    - Reboot / restart IIS service.
    - Compare Hardware Requirements for the software you use.

    Check out Process Explorer for detailed monitoring (free):
    http://technet.microsoft.com/en-us/sysinternals/bb896653

    +
    0 Votes
    apontiflette

    Thanks.

    I'll download it now and give you a heads up by this evening.
    No issues with local network performance when accessing reports.
    Database was built in MS Access but .mdb file is currently 526MB and growing.