Also have a new TP-LINK 300mps wireless N router/modem.
I have got really decent line stats but have been having really poor internet performance for the last week.
Finally got round to doing some testing today and I have narrowed it down to something with the wireless.
If i do a speedtest.net test on a wired connection i consistently hit ~13-16Mbps.
If I do the same test using wireless I get ~3-6Mbps.
I have run SSDinsider and have checked that the router is using a different wireless channel than any other networks.
As well as the poor speeds I seem to be getting huge amounts of packet loss over wireless as well. When online gaming it is really noticeable. For some reason running pingtest.net tests it is unable to measure our packet loss.
Is this a faulty router or something else causing these problems?