I still have this problem after using all the solutions given on the forum.
And it only runs 15 browsers.
Can't go any further than that and it gets the message across.
While I have used browser hiding capability which can run 1000 browsers simultaneously.
@sly Maybe you specified the wrong type of proxy (http/socks)? If it's really too bad, could you write down your proxy connection data so I can check it myself?
