Comcast Internet Troubles

Discussion in 'Mac Basics and Help' started by jh215, Aug 21, 2011.

  1. jh215 macrumors newbie

    Jul 21, 2011
    Hey Guys,

    My internet is really slow. I can't figure out why. I'm using comcast if it matters. Please help me, I'll take any suggestions? Could this be throttling from using netflix? I don't torrent or download much but my speed sucks horribly. I couldn't even update MS Office without it timing out.
  2. BrianBaughn macrumors 603


    Feb 13, 2011
    Baltimore, Maryland
    How long has it been slow? They were working on the lines last week in my area (apparently) and I had a very iffy connection for two days. was fine.

    Two weeks prior their techs had been out here and did some wiring work on my house that had things running great. The slowdown really had me puzzled.

    I guess you've tried restarting or resetting your modem. Did you call them...they'll do a minor test while you're on the phone?

    They don't do anything to let customers know about possible slowdowns due to their own maintenance.
  3. jh215 thread starter macrumors newbie

    Jul 21, 2011
    They were just here last week to work on our phone service but the internet was working until today, well...its always spotty but today its just been extremely slow and unresponsive. Maybe they're doing work like you say, I just get concerned because I have a brand new iMac and everything runs perfectly except for the internet.
  4. matbook101 macrumors 6502


    Feb 8, 2010
    In the secret land of Cupertino.
    Well it could alway be a faulty wifi receiver.
  5. jh215 thread starter macrumors newbie

    Jul 21, 2011
    I apologize for sounding like a noob here but how would I know? Also, could the modem be the problem? I unplugged the modem and replugged minutes later and I have the same issue. This is not a constant issue but it was a huge problem in the past day and still is now.
  6. satcomer macrumors 603


    Feb 19, 2008
    The Finger Lakes Region
    Then find a bill and find the phone number for your Comcast tech support and ask them to check the ping times to your ISP modem. See if then see a slow down on that link.
  7. xlii macrumors 68000


    Sep 19, 2006
    Millis, Massachusetts
    Pull up the terminal app (in the Utilities folder) and type:


    You can control c out of it when you've seen enough.

    You can also try traceroute

    If possible you should try to eliminate your wireless router. Plug your cable modem directly into your computer via the ethernet cable.

    If you have another computer in the house you can also try it. What you are trying to do here is simplify and eliminate.

    If none of the above give you any info you should call comcast and let them know your problem.

    I'm also on comcast and here is a sample of my ping results:
    There should be no data errors

    PING (xx.xx.xx.xx): 56 data bytes
    64 bytes from xx.xx.xx.xx: icmp_seq=0 ttl=59 time=18.298 ms
    64 bytes from xx.xx.xx.xx: icmp_seq=1 ttl=59 time=43.010 ms
    64 bytes from xx.xx.xx.xx: icmp_seq=2 ttl=59 time=17.662 ms
    64 bytes from xx.xx.xx.xx: icmp_seq=3 ttl=59 time=15.105 ms
    64 bytes from xx.xx.xx.xx: icmp_seq=4 ttl=59 time=15.454 ms

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