{HELP PLEASE} Problem with my feed url

i just saw that my blog feed is showing this:

http://www.##.com/?feed=rss2

instead of this:

http://www.##.com/feed

I have tried several solutions and it still remains the same, i have even remove wordpress and ad it back, it still displays the same, any one with solution to this?

Thanks and waiting for your reply

Which site you are using to make feed? Try feed burner