rss error: WP HTTP Error: couldn’t connect to host

2013-09-03 After upgrading to 3.6 and when the server is slow, the problems happened again out of no where. This time, I’m going to fix it once an for all by using google feed burner. Replace all the internal direct feeds with feed burner ones. After upgrading WP to 3.3.1 on one of the blogs and not the others, they’re sharing the same database and just the wp_ different, I got…