Question Session cookie lifetime?

hello,
don't know which web browser you are using
but it may be that you sometimes clean up your PC/laptop?
But could it also be that you are using a cookie extension?
Then you can often find the setting for the number of days the cookie can exist.
Or take a look at the Joomla Plugins: Authentication - Cookie
that also says a number of days

Hi Leen.

Thanks a lot for your fast reply. Please find my answers below

Leen wrote:

don't know which web browser you are using

It happens with several Browsers on different platforms (PC, mobile Devices) according to my users. I witnessed this behaviour on Chrome, Edge and Firefox.

but it may be that you sometimes clean up your PC/laptop?

No, Auto-delete of the cookies (and temporary data) is disabled

But could it also be that you are using a cookie extension?

Nope, no such extensions installed

Or take a look at the Joomla Plugins: Authentication - Cookie
that also says a number of days

Plugin is enabled and a session lifetime of 60 days is set, which is default. But I think it is not the Authentication cookie that we are looking for, but the "System - Remember Me" cookie and plugin. This plugin is also enabled, but has no values to configure.

Is your site up to date? There was a bug when you logged in via Kunena. But this should already be fixed. github.com/Kunena/Kunena-Forum/issues/9602

I don't think that this is exactly the same issue. The issue that was fixed in december was that no "remember_me cookie" was set. The issue that me and my users witnessed was that the remember_me cookie was set correctly, but it disappeared after one or two weeks.

Unfortunately my users can not reproduce it anymore, because I quit my site, disabled all my users and blocked the creation of new accounts. But I left my own account enabled, so I will try to reproduce it with different browsers.
 

Update: Just a few days later the "remember_me cookie" (valid until end of July) of my site disappeared and I had to log on again.