This is very odd. For a few months now I have been unable to login to this discussion website or the GW2 Account page on my PC. After entering my credentials on the login page it either doesn't navigate there and returns a blank white page or I get a confused face with "invalid session: permission problem". Suspicious?
Things I have tried:
Disabling all add-ons and blockers
Clearing DNS cache
Resetting modem and router.
Ensured Windows is up to date.
Works on other computers and my smartphone which I am using now, all connected to the same network. That rules out IP banning. Now the only thing I can think of is that somehow, mistakenly or otherwise, I have been blocked based on hardware ID, like the MAC address.
I'm not accusing anybody and there's likely another reason for all of this but all the evidence points towards some sort of block. I do not use 2 Factor Authentication for login on the website.
I am yet to try a VPN on the PC that is having access issues to this website. That is my next step and I will report back.
Just to note, prior to this, I've had no access issues on the same machine at any other time on the GW2 Discussions and Account pages and that separately, I have never had an issue logging into GW2 itself.