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Random Authentication Sign Outs in ASP.NET Core 2.1 #2084
I'm receiving user complaints saying they are being directed to the login screen randomly when it has only been a minute or so since they clicked a button that would have sent a message to the server side.
Here is a log of one of the errors.
I've finally worked out what this is. It's to do with cookie validation checking being run every 30 mins by default. It's a fault in asp.net core 2.1 and should be fixed in 2.2.