Yes, only then.
On this website (www.two2go.ch) I could not replicate the error. It works fine now.
But I checked this website now: www.byebye-switzerland.ch
It loaded okay. So I loaded a few sites. Everything okay. Then, after about 10 pages, I got the Error 522. It happened on a page that I visited 3 times before in my testing. After reloading it worked.
