Us.battle.net redirects to kr.battle.net and times out

I’ve got my language/region set to English (SEA) and when I go to www.blizzard.com or www.battle.net to access my account, I get redirected to kr.battle.net when I try to login. Most of the time the login times out and I have to manually change the kr in the URL to us in order to be able to login. It does the same thing if my region is English (US).

Any ideas why this is happening? I am in Australia and my ISP is AussieBroadband.

https://kr.battle.net/login/en/?ref=https://kr.battle.net/oauth/authorize?response_type%3Dcode%26redirect_uri%3Dhttps%253A%252F%252Fwww.blizzard.com%252Fauth%252Fbnet%252Fcallback%26scope%3Dlogout%2520account.licenses%2520email%2520name%2520private_flags%2520primary-address%2520account.full%26client_id%3D3d87a4f120754e15840548b68d9ea4db&app=oauth