Troubleshooting: Slow Speeds on Qwest DSL

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Slow speeds on your DSL connection can be caused by a variety of issues. This article will help you to identify the cause of the issue and provide assistance in resolving it.

Step 1: Check Modem Speed

By logging into the modem, you can see exactly what speed the modem is connecting to Qwest.

  1. Go to in your browser
    • This is the default address of your DSL modem.
  2. Click on Status
  3. In the status section we want to look for speed up/down or downstream/upstream rate.
    • This will either be in WAN status or General status depending on your modem and firmware version.
    • You should see your speed here represented in kilobytes (KB).
      • If the number you see here is less than the speed you are paying for, proceed to step 2.
      • If the number here is correct then the modem is connecting up correctly and it is most likely not a physical or Qwest issue; Proceed to step 3.

Step 2: Check Physical Factors

Your Qwest DSL modem and anything using the phone lines in your home must be plugged in correctly in order for you to get optimal DSL speeds. Here are several things, which if plugged in incorrectly, could cause slower speeds:

  1. Make sure the line from the modem is plugged into the LINE port and goes directly to the wall jack (no filter in-line).
    • A splitter is permitted, but removing it during troubleshooting is helpful since the splitter could be functioning incorrectly.
  2. If you have phone service on the same number or line as your DSL, you need to have a DSL filter installed on every single jack in use on that number (with the exclusion of the jack the modem is plugged into).
    • This includes jacks used for phones, fax machines, security or alarm systems, and satellite TV systems.
  3. Try replacing the phone line that runs from the phone jack to your DSL modem.
  4. If the above items are as they should be or have been corrected and the modem is still not showing the correct up/down rate, we will need to troubleshoot with Qwest. Please contact support and we can assist you in troubleshooting with Qwest.

Step 3: Troubleshoot Internal Network Issues

If your Qwest DSL modem is showing to be connected up at the correct rate, the problem most likely lies within your home network.

  1. Plug a single computer directly into the modem using an Ethernet cable.
  2. Go to and run 3 speed tests. If the speeds are higher, this tells us that the speed issues you are seeing are internal to your home network.

LightBulb.pngIf at any point you need assistance with any of these steps, please contact support.

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