The requirements are as follows:
Were you ghosted in the past 24 hours?
I don’t know but I flew in advanced server in London region before half hour but I didn’t finished landing because my internet was slow
Also I believe your standing has to be 100% to access the advanced server. Although confusingly I’ve seen people with a white display tag on there before (which means lower than 100% standing). But disregarding that, make sure you have a current 100% standing.
Yes my standing is 100