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  • Ryan Casey 10 posts 103 karma points
    Jun 21, 2016 @ 14:58
    Ryan Casey

    Umbraco Forms 500 Error on Load-Balanced Site

    Hello all,

    I'm working on a site that is load balanced between two servers, and I am using Umbraco Forms for their Support form. This is the only form on the site, but users are seeing an inconsistent issue where every now and then a user will get a 500 error when submitting the form instead of being taken to the Success page, as defined in the form's settings.

    The form entry is saved and visible from the backoffice, and my notification workflow goes out without issue. I've tried disabling the workflow, but that had no effect. I've also tried keeping an eye on various cookies (especially ASP.NET_SessionId) as I figured that might be arguing with the two load-balanced servers somehow, but I've yet to find any solution there either.

    Anyone run into a similar issue?

  • Dennis Aaen 4495 posts 18201 karma points admin hq c-trib
    Jun 21, 2016 @ 17:07
    Dennis Aaen

    Hi Ryan,

    Have you seen this package for running Umbraco Forms in a load balancing environment. and you can see we have fixed some LB stuff in Umbraco Forms 4.3.0

    Hope this helps,


  • Ryan Casey 10 posts 103 karma points
    Jun 21, 2016 @ 19:45
    Ryan Casey

    Looks like that did the trick! Thanks!

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