2 weeks ago my father bought an Inspiron 3670 to replace his aging HP machine.

He is currently running both machines, sat next to each other on his desk.

Both are connected via a Dlink 105, 5 port switch to his router.

Running the test on Speedtest.net, the HP machine gets 56mb DL and 12mb UL, the Dell machine only receives 9mb DL and 12mb UL. The tests are both connected to the same server and run one after the other.

The Dell machines drivers are up to date, as is Windows. We have tried different ports on the switch, swapping the cables over and plugging the router directly in to the Dell machine..... same results.

Any ideas what may be slowing the speed of the Dell machine down?