Try to re-install the Network adapter drivers, if it isn't too much trouble. Helped me enable the 100MBit connnection. Although at a good 10MBit you still should be getting better tranfer rates than 14K...
Btw, was the 14 KBit or KB (as in Byte) ?
Your browser or download manager usualy give the speed in KBytes, which equal 8 KBits each...