I find it hard to be an av problem i dont have it. I only use windows defender and firewall i know i should a av problem but i dont but even with all these disbaled we still have an issue. I dont believe it is in this area. But i should say i also got the fa50x from carenardo if i spelt that right and im some issues there not sure if there linked but at least with yours it installs there doesnt thought i should jsut say but they are also saying anti-virus with possiblies with issues with the isp. There has been issues with multiple devies there is like page fail. or fialed certificate its defo an issue with the interent not to sure whats going of there. But i have used my 4g your know on phone and when i ahve done that the download went smoothey no stops as before. So just want to udnerstand where the problem areas may be. So if i inlucde the downloaded file can you please check it to see if its ok. Should narrow down the search.