If you hear of anyone who is trying to get into the forum post-migration to the new server and is seeing their IP is banned ask them to clear their browser cache and and cookies from weather-watch.com.
This should only affect users who tried to access the forum during the migration and picked up a cookie relating to the wrong server IP address. This would have been during a 2 hour period on Monday 4th April. If you see the banned IP address screen you can check if this is real or not by using a different browser than you normally use. If the other browser still says you’re banned then it’s a real ban (contact me by email to investigate this). If the other browser allows you to access the forum then it’s a broken forum cookie in your usual browser