SessionID keeps changing in ASP.NET MVC why?

user_22093 0
Viewed 45717

I am trying to keep track of something and using the SessionID as they key to that object

However the SessionID every 2-3 reqiests changes shouldn't it remain the same?

HttpContext.Session.SessionID

Is the code I am using.

session asp.net-mvc
9 Answers

I've seen that happen even without MVC. If I remember correctly, ASP.NET keeps assigning new session ids until you place something into the Session variable.

user_153100

I am working on a .NET MVC cart application and I added 

Session["myVar"] = "1234";

to the Page_Load method found in the Default.aspx.cs code. I also added 

<%=  this.Session.SessionID %>

to the Site.Master footer. I then rebuilt my app and browsed the various pages of my app and the footer displays the same session id for all pages as expected!

robnardo_567740

I would look into using TempData to keep track of something.

MrJavaGuy_71380

Try with adding machine key into your web.config:
Online key generator: http://aspnetresources.com/tools/keycreator.aspx It seems that server resets machine key for client and generates new one with new session id, every few minutes, which is much lower than it should. Don't know if that's bug or feature:)
Also, you can increase your session state timeout, which is i think 20min by default.

Hrvoje_14070

please see if you have set the cookie samesite attribute to strict.

remove cookieSameSite="Strict" and check.

user_7845420
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