I too am having issues with staying logged in while reading the forums. I discovered for certain today that after reading the tops section relating to all ages of revolvers, when I click to open the M&P pistol section, I am logged out. I can immediately go back to the main page and open one of the revolver forums and I show to be logged in.
I decided to report this (while showing logged in) and clicked to open this part of the forum and was shown to be logged out. I did this twice to confirm. In order to post here, I had to log in again. This has been happening for about a month or so. I have white listed this site, and my security setting is at medium high. I have not tried it at the medium setting as yet but will do so. This is the only forum site where I have this trouble. I am using IE on my laptop, but I have read the sight for many months with the new laptop without experiencing this difficulty. Perhaps the trouble is on my end, but it just recently started.
I wish to report this situation, and will welcome any advice you may have for me. Thanks for your time and attention.
EDIT: I reset my security setting to medium after logging out, then returned to the forum. The above sequence occurred again. When trying to open the M&P section, I showed to be logged out, went back to the revolver section and showed logged in again automatically. Tried to open this section and showed logged out, had to log in to be able to post this edit. I am normally active all the time I have the forum open. I would expect it to time out after a period of non use, but that is almost never the case while I have this forum open. I have not clicked the box "remember me". I normally log out each time I leave the forum and log in again at the beginning of each section. Thanks for your help.