Not running at 56K

We have a compaq presario 4640 we noticed we weren't running at 56K we are running at 28.8. Our internet service said we should be at 56. Compaq wasn't much help. The computer came perloaded so we can't reload it.What else can we do?
ralrickAsked:
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gjahchanConnect With a Mentor Commented:
Ultimate connect speed is limited by all intervening equipment between your PC or network and your ISP's network. That includes your modem, the telco wiring, the telco central office switches and the ISP's access servers.

Any of the above does not perform up to standard and your connect rate drops, and/or your connection is unreliable. If that is indeed the case, identifying the culprit is no easy task. You have to proceed by elimination, taking one factor out at a time and testing until you stumble on the problem. Obviously, there are factors under your control and others totally out of it. But by using common sense and patience you should be able to sort things out.

Even though that should not be the case, it is a well documented fact that certain client modems do not perform very well with some access servers. This is especially true of el-cheapo WinModem type modems that use the PC's CPU to perform tasks normally relegated to a dedicated modem chip and machine language code (modem firmware). Pre-loaded modems tend to be of this type.

In a perfect environment, V.90 allows 33.6K max. upstream and 56K max. downstream to/from the ISP. 28.8K is a perfectly acceptable upstream connect rate, but a poor downstream rate if that is indeed the case. The modem log will tell you more about your exact connect Tx/Rx rates, see below.

Enable modem logging (in Control Panel > Modems > Properties > Advanced), try making a few connections to the ISP and check the log file contents. It will tell you more of what you need to know before proceeding further.
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Darkness112299Commented:
Two things.  Just because you have a 56K modem doesn't mean you'll actually connect at 56K.  With my 56k USR modem I get speeds anywhere from 28000 to 48 000 (and rarely any higher).  But if you're consistently getting 28.8 (and your ISP actually tells you to expect more) then you can check your settings in Control Panel.  Just open up the Modems Properties box and look under the General Tab.  Check the settings and clear the check mark (if there is one) on the "Only Connect at this Speed" box.  

If this isn't what's causing the problem then please provide a little more info.  Like the brand of modem and if it supports the V.90 standard.  If not then what Flex? x2?
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AwmytieCommented:
    Often the problem stems from the quality of the telephone line, including whether there are other devices on that line (other phones, fax, PC's), how far from the central office you are (over 1.5 miles?), environmental electrical noise, etc.  Typically, my 56K V.90 modem connects at 37,333; once in a while at 42,000.
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Stuart_JohnsonCommented:
I too rarely connect at any rate higher than 42k.  The old analog lines are not capable of transfering data at that rate.  Where I used to live, I was lucky to get higher than 31k on my 33.6k modem.  Since our telephone company upgraded the exchange to digital, I can connect at 42k almost everytime to my ISP.

Another element to consider is modem compatibility.  If you are using a K-Flex modem and your ISP is using X2, then you're modem won't connect at anything higher than 28.8k.  Check with your ISP and see what protocol they support.  Chances are the modem you are using may not support it.

Cheers,

Stu.
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jgarrCommented:
Is this a new telephone line you're using? If this is the case, the problem could be related to something telephone companies are using called a DAML.
A DAML (Digitally Added Main Line) is used to split an analog line into two separate lines. They use it to avoid having to send a tech up to locate a free pair on the street. DAMLs work OK for straight voice lines, but definitely will not allow connections over 28.8.
A couple of ways to check. Try all of the phone lines into your house. See if any will allow a 56 k connection. If you have a friend with a laptop with a working 56k modem in it, invite him over to see if he can connect like he can normally. Alternately, you can bring your PC to his house and see if you can connect at 56k there.
The problem: if it is a DAML in your way, telco will not respond to requests to remove these buggers if the only problem is that you can describe is a modem connect speed issue. You may want to "discover" problems with Caller ID, Call Waiting, noise on your regular line, etc.
Be persistant, don't stop until you hear the f word. That's right. Foreman. He can help you.
If it's not this, it's probably firmware or modem inf file. Get the latest one.


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