Change world not working

On Friday and Saturday there was a prolonged outage with connection problems. They have been resolved. There is a knock-on effect which means some players have to clear their cache and cookies as well as log out completely.

Try clearing cache and cookies and logging out (via the logout at the top of the main front page (it may automatically log you in, when you press play, in which case you need to log out a second time).

It is still not working. I cleared the cookies, I cleared the cache (had trouble re-logging to all websites I joined) and I logged out. Has anyone experienced something like this? I also recalled that I had chrome block 3rd party cookies. Does this affect the sites in any way?

Almost certainly blocking 3rd party cookies could be the cause. The game uses multiple cookies from various sources to track and provide ads and data.

Try with that feature turned off. Or try a different browser.

It seems to be working ok now. I've just logged in and used the changer server page via the front page.