On my Dec 2007 Dell Inspiron 530 PC I have been having slow download speeds and on-and-off outages lasting 10 - 20 minutes. I have a Netgear router and wireless card.
My ISP tested the line, without finding a problem.
I borrowed my neighbour's laptop and ran it alongside the Dell with no problems, downloading at up to 9Mbps while I only got a max. 3Mbps and often less than 1 ... ugh! The laptop also played a BBC iPlayer HD prog. without a break or pause then downloaded it at 9Mbps. My ISP says the maximum I can expect is 11Mbps.
Next I removed Norton Anti-Virus, no difference.
The I swopped out the wirelass card for another Netgear from an older PC. No difference.
Then I returned the card that came with the Dell, but in a different PCI slot. No diffference.
I should say that a couple of weeks ago my W Vista opsys became corrupted and was re-installed, no hardware faults were detected at the shop. No difference.
So, what is causing the slow download speeds and the outages?
Is it some evil software hiding in the Dell, or a hardware failure developing, if so, how do I find it?