> -----Original Message----- > From: tclug-list-bounces at mn-linux.org > [mailto:tclug-list-bounces at mn-linux.org]On Behalf Of Mike Miller > Sent: Monday, April 04, 2011 5:56 PM > > On Tue, 29 Mar 2011, Chuck Cole wrote: > > >> I may have happened to read the question wrong also, so I will answer > >> the alternate (Can you achieve the same /internet/ speed with WiFi and > >> wired). > > > > That *IS* the question. > >> > >> If you receive ~15Mbps from Charter but you only see 7.5 via WiFi you > >> are most likely on a busy WiFi channel. Try different channels, or > >> perform a site survey and make sure to not choose a neighbors channel. > > > > Data given above stated "clear channel with high S/N" > > > > Are you saying that I should get the same ~15Mbps on WiFi as LAN per > > Charter's speed test? I think I should, unless there's some detectable > > overhead. that I have not been able to identify or detect. > > > I am curious about this. I haven't done any careful testing, but I have > always had the impression that my wifi internet connection was > slower than > my wired connection. It would be nice to hear that Chuck figured this > out. Are we really out of ideas for him? > > Mike I did further testing and verified that the problem doesn't seem to be a limit or fixed characteristic of my local hardware. Found a freeware utility for windows that does bidirectional tests pairwise between computers on the local network. This tool generates a large dummy file, and times 2-way transfers to/from a disk, then cleans up its mess. This test tool shows nearly 100mbps between wired pairs, and nearly 54mbps between a wired and a WiFi pair. Doesn't seem to be much difference between having only one of my WiFi boxes active and having two active. These results seem to show that I should get about the same download speed on my WiFi as on my LAN connections, since the WiFi links have more than about twice the internet download speed. Wild guess: some protocols have short and long transfer modes that differ by block lengths and thus the packetizing overheads. MAYBE the internet test from Charter I was using makes the WiFi link use a short transfer mode and not a more suited long transfer mode. Quite a puzzle.. Chuck