BT hub connection?

momoyama

I can't tell you what model mine is, but it's black and square, which I know is a bit poor a description for a computer geek. I got it April 2008. My personal (working) experience.

The instructions said to plug it in to USB to install, though they intimated running it via ethernet. I have an ethernet port on my motherboard, as I suspect most people do these days. So I plugged into my USB 1.1 port (on a Belkin 4-port hub actually) and it installed and ran like a dream. Never had a problem so couldn't be arsed setting it up as Ethernet.

It has two ethernet ports. One is connected to my PS2, though I've never used it. The other to an ethernet socket that I built into my wall to network the house. The other in another room.

Now then, my mother bought a laptop and was connecting to my hub wirelessly without problem. Then one day her laptop installed a Windows Vista patch and she stopped being able to connect wirelessly. I'm really not a great network guy at all and failed to fix the problem. So now she connects via her laptop's ethernet port without problem. If anyone has a solution to this then I'm all ears. Rolling back the System Restore didn't work.

As a further point of interest, looking at it now, it seems that it has a port to enable other USB devices to daisy-chain through it. I'd never noticed that before. Could be useful.

asbokid

Those are theoretical speeds. The true throughput of USB is far lower.. The USB stack is not lean. There are considerable overheads. The URBs (the data packets used by USB) have a relatively high header-to-payload ratio..

I read some bus bandwidth tests on the forum for Microchip, the makers of a USB host controller. The lab put the real-world figure at < 1Mbps... 800Kbps was considered good.

Don't forget the USB serial bus is shared. You can technically have dozens of USB devices cascading off USB hubs hooked to one USB root port. Pump a load of data through that and you will be down to a bandwidth closer to dialup!

Even Ethernet is not what it's cracked up to be.. The delay from the back-off and re-try "Collision Avoidance" mechanism of Ethernet sees throughput cut to little more than half the quote bandwidth (e.g. 50Mbps on a 100BASE-T)..

Factor in the overheads from the protocol stack, and real world speeds for the end-user at his browser are little more than 802.11b speeds, for example..

-TangleFoot-

momoyama wrote: »

I can't tell you what model mine is, but it's black and square, which I know is a bit poor a description for a computer geek. I got it April 2008.

Probably version 1.5. Does it look anything like this?

momoyama

-TangleFoot- wrote: »

Probably version 1.5. Does it look anything like this?

That'll be the one.