Quote: Originally Posted by stormy13
It can also be the wireless adapter(s) themselves. My wife has a laptop with a Broadcom wireless N in it and it can only do 65 Mbps as well, due to a limitation of the chip.
From what I could find from looking into it a year ago is that it looks like there is a surplus of these Broadcom chips (that are more like early draft N, than full spec N), and quite a few laptop manufacturers are still using them and advertising N speed wireless, without being able to achieve full N speed.
Do you have any links? I can't even find a model number for my Broadcom adapter, it just says Broadcom 802.11n. But I think I have to agree with you because I have tried everything. I have set everything on the router as it should be including security to WPA2-[AES]. I can't actually find the specific setting but I'm pretty sure the router is already set for n, not mixed.
Funny thing is this laptop replaced one I returned because I wanted a better CPU. But apparently I got an inferior wireless adapter. The other laptop had an Atheros adapter. I never specifically looked into its speed but this Broadcom also get worse reception than the Atheros did so I bet the Atheros will have better speed.
The manufacturer uses a variety of adapters so maybe I could exchange and get lucky and get an Atheros or I could just go back to the Laptop with the lower CPU if it means better wireless performance.