Extensions Manager: "an exception occurred during a WebClient request" (1 Viewer)


New Member
July 5, 2017
Canada Canada
After re-installing Windows, I re-installed MediaPortal as well but am running into this problem. The error message is attached below. I've tried installing MediaPortal 1.15 and 1.17 with the same results. Does anyone know how to fix this? I'll try to attach a log if needed



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  • Team MediaPortal
  • September 1, 2008
    New Zealand New Zealand
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    Yeah, I suspect missing or mismatched version of .NET as well.
    Which plugin are you trying to install?


    New Member
    July 5, 2017
    Canada Canada
    Thanks for the replies. I was trying to download the list of extensions when it generated the error.

    I suspect this may be because I had accidentally installed NET 3.5 on Windows 8. Can I easily revert the NET 3.5 installation? I don't see it under the program uninstallation menu. -- EDIT: I reinstalled Windows 8.1. This time I followed the instruction to enable NET 3.5 only in Windows Features. Unfortunately, I'm still getting the same result.

    Because of this issue, I am currently unable to get any plugin from the Extension Manager. I tried to install plugins using old setup files I have, but some will not install this way.
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