New to SEO and Scrapebox. Currently trying to use Scrapebox to build some backlinks to my web 2.0 sites. I have four private proxies. I tried to steal the backlinks to another obvious affiliate site, 50k+ backlinks to the main page. Ended up with 8k+ backlinks in the blog analyzer, and the vast majority come back as "error 504". I keep hitting "restart failed" and each time I get a few more links. Tried playing with the connection settings, from 4 all the to 100. Same results, very slow and only a few more links each time. After running it about 10 times I had 2k out of 8k. Finally just went with what I had, and put the wordpress blogs into the commenter. 174 wordpress blogs, put it in slow mode and finally got 18 submitted... more error messages mostly. Why do I keep getting the 504 errors?