4,588 questions
strange thing in provided log is this one:
"The security validation for this page is invalid and might be corrupted"
do use see any errors in Browser console (F12) when open search page?
FBA Users Cannot Search
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(236.8, 66%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHQ%3C/text%3E%3C/svg%3E)
Hisham Qaddoumi
1
Reputation point
We have a site with two zones, one for windows authentication and one for FBA users. The one with windows authentication is fine and users can perform search but the one with the FBA users cannot search and it throws an error about authentication. I uploaded the error log within this thread. This happened after a recent SharePoint update we did on the server as it was working before. Here are more information:
SharePoint Version: 2019 (on-promise)
Windows Server 2019
SQL Server 2019
Site Collection Template: Publishing Site (Classic Experience)
Thigs I tried:
- Full crawl
- Change authentication method in the STS different times different methods
Any help is greatly appreciated.
Microsoft 365 and Office SharePoint Server For business
Microsoft 365 and Office SharePoint Server Development
1,658 questions
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 1%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECM%3C/text%3E%3C/svg%3E)
CaseyYang-MSFT 10,461 Reputation points2021-05-04T10:00:49.497+00:00 Have you installed system update or CU patch in the SharePoint? Which version of system update or CU patch have you installed?
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Hisham Qaddoumi 1 Reputation point
2021-05-04T12:01:57.953+00:00 @CaseyYang-MSFT Yes Casey. The current update version information is as below:
SharePoint 2019 version: 16.0.10373.20000
Latest Core KB: KB4504716Screenshot of the latest patches installed is attached below:
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CaseyYang-MSFT 10,461 Reputation points
2021-05-05T10:09:43.227+00:00 Please try to re-configure your FBA. If you have any progress please feel free to let us know.
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Hisham Qaddoumi 1 Reputation point
2021-05-05T10:28:54.04+00:00 @CaseyYang-MSFT Thank you for the reply. I did try that but it didn't work. As I said I also tried reconfiguring STS without luck. It was working well before the update and FBA users can still log in and do everything without any problem except for search. Obviously the FBA configuration is not the problem. Also, if every update to SharePoint will create a problem with FBA that we need to reconfigure it every month, then that is not a real solution. SharePoint updates should not affect FBA setup and if they will for any reason it should be documented within the update documentation and what should be done. None of this is actually documented in the recent upgrade.
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CaseyYang-MSFT 10,461 Reputation points
2021-05-12T08:30:23.517+00:00 I suggest you to open a ticket with Microsoft for furthur help.
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Hisham Qaddoumi 1 Reputation point
2021-05-12T08:52:11.913+00:00 @CaseyYang-MSFT I already did. They are of no help. They suggested a couple of things and nothing worked. I can't believe that no one has any answer to this! It might be a bug with the recent update but no one is figuring this out yet.
It's really frustrating!
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3 answers
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Hisham Qaddoumi 1 Reputation point
2021-05-11T11:51:19.39+00:00 @sadomovalex
Nothing in the browser console. This error happens on the SharePoint level not the browser level. This message appears in the ULS because it cannot generate the Search Results web part because of a permission error so the security validation of the whole page fails and got corrupted as the web part inside it is corrupt. If you notice the first logs, you can see that the FBA users do not have access to Process Query service:
Failed getting current site subscription id using context uri: 'https://www.mysitecom:443/search/_vti_bin/client.svc/ProcessQuery'.
If I open this URL in the browser I get this error:
<m:error xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<m:code>-2147024891, System.UnauthorizedAccessException</m:code>
<m:message xml:lang="en-US">Access denied. You do not have permission to perform this action or access this resource.</m:message>
</m:error>
It is obviously a permission error nothing to so with the browser.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 1%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
krateaustin412 0 Reputation points2023-06-16T15:33:36.7+00:00 It seems like you're encountering an authentication issue with the FBA users on your SharePoint site after a recent update. The error log you uploaded might provide more insights into the problem. Since it was working before the update, you could try reverting the update or checking if there are any compatibility issues with the specific SharePoint version you're using. Additionally, reaching out to SharePoint Cellulite support or consulting SharePoint forums could provide you with more specific guidance in resolving this authentication error.