Wordpress RSS get the wrong address from subdomain Q2A

Question

Hi,

I have my Wordpress in the home folder, i.e. http://www.ytecongcong.com

The Q2A is in the subdomain http://stats.ytecongcong.com

Whatever RSS widgets I used, the link show on the frontpage is wrong, i.e.

Instead of open the link

http://stats.ytecongcong.com/specificed-post-name

it shows the redundant parts

http://stats.ytecongcong.com/feed/stats.ytecongcong.com/stats.ytecongcong.com/post-name

The RSS feed I put in the Wordpress widget is http://stats.ytecongcong.com/feed/qa.rss

How can I resolve this?

It works well if I install it to the sub directory, e.g. ytecongcong.com/q2a/ but I prefer the sub domain name, it just sound better for my site topics

I finally resolve it by myself, just remove the prefered URL, i.e. from http://stats.ytecongcong.com/ to a /