Re: post timeout on forums
Multiple laptops and PC's, multiple OS's (Win7/10, OSX and Ubuntu) with multiple different Internet connections, firewalls and security software and I've never seen the time out you mention.
Does it happen on devices other than your laptop? My first guess would be an anti-virus/anti-malware/privacy application removing session cookies.
(I've left this post sitting for 40 minutes adding one word every minute with no timeout issues)