HttpHeader Request only part of an entity

[squidge]

please read my code, because I still use the "range" http header, but no connection, it error 206, if so would you please edit my project, thanks

I very much doubt anyone here is going to edit your project. We are doing this for free, you should appreciate the helpful advice.

Secondly, 206 isn't an error. It means success. You asked for partial content, and the server provided it.