Your Kaspersky settings may be a bit strict. I have no idea why you would have trouble to log in to FSB forum, there is nothing about the forum site that should cause difficulty, I use Chrome and Firefox and IE from time to time and encounter no problems with any of those.
I have one application which is unrelated to trading and also demands excellent connectivity. I have done many speed tests and also have a small utility which continually pings yahoo and google to test for disconnects. I also bridged my supplied modem with a D-Link router so as to enhance connectivity. You may have to research similar.
Problems with ISP relates to your Internet Service Provider, they may not be providing the speed and connectivity. You may have someone that you can consult as to how to monitor your connection.
My 'secret' goal is to push EA Studio until I can net 3000 pips per day....