Members login but when they navigate to another page they are asked to login again. If the 'remember password' option is clicked they are able to navigate the site. Could you please advise what problem is cuasing this misbehaviour. Even when they just click on a tab like edit profile it will often kick them out. It is a bit sparactic but it does occur. Tried clearing cookies, cache, etc... rebooting pc - despite this multiple customer still having issue. Please help as this is providing a bad customer experience.
What kind of protection are you using? Logged in as admin -> Version Info.. check that your session.save_path is defined and that the path is valid and writable by your web account.