Internet abnormally slow

By ciphos
Dec 22, 2010
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  1. Recently, I had a virus on my computer. I quickly removed the virus, but after it was removed, I noticed that my net had become noticeably slower. My downloads that previously topped around 150 kb/s now capped at around 20-25 kb/s and would sometimes freeze in the middle of their download. I scanned again, even in safe mode, and nothing malicious was found. I reset the modem and still the problem persisted.

    After trying everything I could think of, I decided to reinstall Windows Vista. After backing up my important data, I did a complete fresh install of Vista. Formatted the HD and everything. This usually solves any kind of problems that I have if nothing else will.

    I started windows after the reinstall and opened up my browser, I discovered that my internet was still slow like it was before. I opened up the settings page for the modem, and everything seems fine. I don't know what else to do.

    Hoping you guys can help me shed some light on my problem.

    My information is-
    ISP- ATT

    Modem- Simens Speedstream 4100

    Connected at- 1536 Kbps (downstream)
    384 Kbps (upstream)

    Don't know if you need more information or if that's helpful information, but thanks for any help you guys can provide:)
  2. Dhakos

    Dhakos TS Enthusiast Posts: 79

    Have you got another computer on the same network you can test the internet speed of?
  3. Tedster

    Tedster Techspot old timer..... Posts: 6,000   +15

    I would run TCIP optimizer. It's freeware and works.

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