You have to be very careful the ISP quotes rates in bits and file transfer is in bytes. So if I assume you really meant 305 Kilo byte/sec That gives 2.4 mega bit. Still much below the advertised rate BUT
The rates they advertise are all smoke and mirrors. When you read the fine print all they promise is you can get that rate MAXIMUM and even worse only to their network. The promise nothing about going to another ISP network or any site off their network.
The only way you can even think to test this type of stuff would be to find someone else who uses their service and run testing between your machines. You would then at least have a chance to get them to do something since it is all their network.
They can do little if the problem is a overloaded server or circuit in something they do not control.
I am paying for 30 Megs Broadband With A Doxis 3 modem. My friend has 1.5 Megs From DSL. It seems that my service should be a lot faster than my friend Service, But it is not my web pages just opens up a little faster than my friends web pages. When I download software I do not get higher than 305 mb/sec. Some time I feel that I am running dial up again. I had Technicians over numerous amount of times.
1) I know I am in a college town
2) I am running Window 7 I installed not a lot of sofware
3) I have plenty Memory
4) I have i7 2600K
5) Nortons 360
6) A Lot of Big Fish Games
Did speed test I do not believe them. Some of the web pages I open up should open a lot faster than they do.
What could be the problem ?