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November 11th, 2005 03:00
Dial-up Modem Connection Speed Dropped Suddenly
Recently I had to change the hard drive on my computer. New hard drive purchased from Dell and installed with help from Dell's tech support. The operating system was reloaded using the Reinstallation CD supplied with the computer. The Internet Service Provider assisted with setting up the internet connection. At that time the connection speed was ~45.5Kbps. This the same speed that I have seen for the past 3 years of service. A week later, the connection speed dropped to 31.2 Kbps. I contacted the IPS and was told they do not have problems and have not made any changes recently. Their tech support had me change the "Extra Initialization Commands" for the modem to "+MS=V90". This did not help. The current modem is listed as "SoftV90 Voice Speakerphone Modem" - Manufacturer is "CXT". I believe before the Hard Drive change out, the modem manufacturer was shown as "Connexant". I do not know what the model was at that time.
The IPS rep says that a change in modem drivers may be causing the slow connection speed. I have not changed the driver, unless a new driver was loaded as part of the hard drive change out. I received a Reinstallation CD with the computer that says it is for a V.92 (Capable)/56K Telephony Data/Fax/Voice Modem - Contents are: Drivers for 8F217 (which is the Dell part number for the original modem). The original B/M shows the modem as "8F217 Modem,V.92, Internal, Data/Fax/Voice, Soft, Z, Dimension."
Can anyone say if the modem driver has been changed and is this causing the slower connection speed? If no, then what could be the cause of 31.2 Kbps vs. 45.5 Kbps connection speed?
Running Dimension 8200, Dial-up connection, Windows XP Home, Purchased 1/2002, Replaced Hard Drive 11/2005.
ALF10
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fireberd
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November 11th, 2005 21:00
There are many possibilities for a change in modem connection speed, other than the PC or the physical modem. The fact it worked OK for a while suggests the drivers were installed OK. The telephone line, an inside wire problem (a telephone connection inside the residence), Cordless phones and answering machines can cause a lot of problems including a drop in modem connection speed.
The first thing to do is physically disconnect ALL telphones and answering machines from the telephone line in the residence and then try the modem to see if you get the speed back. If not, try connecting the PC to a different telephone jack in the residence to make sure the telephone jack where you normally connect the PC is not the problem. Another possibility is the 4 wire "RJ-11" interconnect cable between the PC and the telco wall jack. Try a different cable.
You can have the phone company check the line and tell them it worked OK until recently.
Unfortunately you are "on your own" to try and troubleshoot or find out what is causing the problem. I've worked on customer's modem/line problems and many times it's taken a long time to finally zero in on what the particular problem is. Rarely is it modem or modem driver problems and I have yet to use an additonal Initialization string on a modem to help. If it won't work without any added modem string, it won't work any better with it.