Good news and not so good!

The good - I got 94Mb/s via the wire last night very late.
The bad - wireless has become very erratic - 15-20Mb/s sitting next to the Hub - multiple tests, not just once or twice. Upstairs is a joke. Yes, I do have an 'N' card and I've tried every channel. Is modem mode any good with the 100Mb/s speed?.

A lot depends on the other wireless network channels in the area. Also has the N card on the laptop been seen to run faster on other connections?

You can get useless wireless cards, just like you can get useless wireless routers.

In reply to a post by MrSaffron:

... you can get useless wireless routers.

The Superhub being an excellent example of such a beast.

Sounds about right for wireless...

19-20Mbps is ok for G, but for N wireless would expect more like 50 to 90 Meg depending on the hardware, some N networks do go faster but it is rare

In reply to a post by GeoffB:

Is modem mode any good with the 100Mb/s speed?.

The Superhub modem works OK. How well wireless works when using modem mode obviously depends on what wireless router you are using with the Superhub. As was mentioned the speeds you are getting sound like "b" rather than "n" - are you sure that the Superhub wireless is set to either 144 or 300 and not 54? What connection speed is being shown by your computer?