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gordm

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Supra Express External 56K - Speed?

Hav the Diamond Express modem. In my neigbourhood most friends get connections of 40-46kbs. I get connected all the time at 36-38. IS there a reason why my connections are slower? we all live the same distance from the CO.
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rayt333

This could be caused by several things, there may be more noise on your line (caused by devices hooked to your line, answering machine, phones,older wiring, bad connections, ect) Have you ran a line test to see what your line could handle?
http://help.ibm.net/helplib/tlcoinfo.html
http://www.3com.com/56k/need4_56k/linetest.html
gordm,

Sometimes when the phone company runs out of copper wires in an area or subdivision they hook any new phonelines up on what is called a "slick" its kind of an overflow for too many phones in an area and is cheaper than running newer bigger copper lines. The downside is modem speeds are limited to <30kbps. I am on one of these where i live and am hoping for a cable modem soon. Call your telco and ask them if you are on a slick. ask for the engineering dept. cause the people who answer in the customer service dept. wont know.

regards,
rcloyd
I would first load the latest firmware.. it helped me out.

http://www.diamondmm.com/products/firmware/firmware-index.html
The initial connect speed doesn't matter that much.

What matters is the SUSTAINED connection speed. While two modems are connected, their speed goes up or down. Depending on the line quality.

And v90 modems has some extra line equalization algorithm that v34+ modems doesn't have.

Although v90 modems are much more sensitive to line noise, they assure the owners of the highest possible connection possible.
Try a simple init string. Go to Controlpanel/modems/properties/
connection/advanced/ then on the extra settings line put:
AT&F&C1&D2

If this doesn't help, visit www.56k.com to find a string specific to your modem.

Gl
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bdrawer

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Have u set your DTE or COMPORTS to 115200?? To do this, right click on MY COMPUTER then PROPERTIES then DEVICE MANAGER TAB then PORTS. Point to where your modem is connected, and then click PROPERTIES then PORT SETTINGS tab, then under the pull down menu of BITS PER SECOND scroll down and choose 115200.

56K modems won't connect higher than 38400 if you have set your port speed at 38400. In order to achieve this you have to set it to 115200.

Also, if you have set your modem's port speed to 115200 and you still connect at 38400 or lower, then it means that line noise is the culprit. Check the wirings. Check the phone lines outside your house to make sure that it is not being touched by trees and other things.

And as I've pointed out, initial connect speed doesn't matter much. What matters is the SUSTAINED connection speed. While two modems are connected, their speed goes up or down. Depending on the line quality.

And v90 modems has some extra line equalization algorithm that v34+ modems doesn't have.
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