Th eonly thing I can think of is to check the properties on your wireless adapter. It may be defaulting to 'b'. You may need to do a search to find how to adjust it. I'm on the limits of my knowledge.
I tried WPA 2 Only and all it did was slow my connection down about 200 - 300 kbps and load times were terrible. Stick with yes 40mhz n but keep with WPA & WPA 2 Only recommended.
So it appears that the wireless signal is fine close to the home hub, i can get up to around 40mbps over wireless sat right next to the hub, however it is stuggling over a greater distance (in next room- only about 20m away) so I am therefore going to assume I need a wireless booster that can transmit over a greater distance. Can anyone recommend one that they may have used themselves? Also would this be used as well as the home hub or in conjuction with?
I have Dell XPS Laptop with a Intel 6300 N WiFI Card inside and i,m sat about 6m away from the Hub 3 and i get 66Mbps sometimes dlightly more , i have Powerlines AV500 installed too 🙂
You might also care to try changing the wireless channel and seeing if that improves things. My HH3 defaults to Channel 1 if I leave it on Automatic, but although none of my neighbours are on that channel something else sometimes interferes with Channel 1 - something that even InSSIDer cannot see ! If I change to Channel 11 everything is perfect, despite several other local routers usng the same channel. As the Americans say, go figure...........