I'm in New Jersey about 20 miles from Brooklyn. I've had the same problem as most others here.
I get search results just fine. An, if I attempt to download a small file it works most of the time (2 to 3 kb song) But, if I attempt to download something larger, say 150 Mb, it never works. All this trouble began about 2 weeks ago, and I have gone over and over the settings, chose different ports thru the router, bypassed the router, shut off firewalls etc etc etc.
Optimum on line denys any involvment although they must be doing something to restrict me and others.

Has anyone else had a similar problem to me and been able to fix it? Please post the EXACT TASKS in DETAIL please if you did. Thank you all.