I know there have been a lot of people having the same "unable to enter the requested store" error when trying to enter the apple developer store. I have finally found the cause and the fix. When following the links from developer.apple.com I would end up at: http://developer.apple.com/Membership/usa.html But this is not the sending referrer that the dev store wants to let you in. You need to come from: http://developer.apple.com/membership/usa.html note the lower case m in the second link. Let's hope that apple can fix this soon. I don't know why it worked for some people but not for others, but by using the second link it works consistently for me now. Hope that helps everyone!