Are there any possible wireless interferences in your household? also is your connection secure as you don't want a neighbour jacking your connection.
Wireless can never be as good as wired so if you could re-arrange your set-up and use your devices wired the connection will vastly improve.
A couple of steps to take
Make sure you have the most up to date modem from your internet service provider (ISP)
If you use a wireless router try updating the drivers (go to the companies site (i.e. D-Link) which created your router, find your router on there and download the latest drivers...
I remember last time you posted about this and the specs on your computer seemed abit out-dated, if you have the funds I'd recommend purchasing a new computer, there's some cracking deals on ebay...
So Westwood and Gunnarsson are not a loss? one of them now plays in the Prem for Sunderland and the other plays week in week out for Cardiff who are 5th.