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kdk1's avatar
kdk1
Tutor
Mar 25, 2022

Dropping connections and fluctuating speeds

Hello,

Hoping to get some explanations here as I am still trying to understand how it all works. I am an xfinity customer with a 50 Mbps. I’ve had the Service for a year. After reading online reviews I selected the AC1600 from netgear so that i could stop paying rent on their arris modem. Unfortunately, my wi fi signal now drops intermittently for what seems like 5 second periods. I ran a speed test and the speeds are anywhere between 5 Mbps and 40 Mbps and seem to drop close to zero when I do something like video stream. Where do I even start? I’m hoping it’s not the router but the timing worries me.

8 Replies

    • plemans's avatar
      plemans
      Guru - Experienced User

      Your logs are indicating line issues. 

      And your cable connections page is showing errors and to high of power in the line. 

      You should be between -7.5dbmv and 7.5dbmv and should be mostly error free. A few aren't a big deal.

      Yours have power levels up to 12.3dbmv and quite a few errors.

       

      Start with removing any amplifiers, signal attenuators, or splitters from the coax.
      From there check the line for kinks, damage, moisture in the line.
      Check the connectors for improperly made ends, foil touching the copper coax line, bad/old/cheap connectors, or corroded connections. Replace them if you do.
      If you can, simply connect the modem right where the coax comes into the home. This prevents wiring in the home from being the issue. And some ISP’s charge if the wiring issue is in the home. So this helps prevent this.

      If you still have the power levels you're at, then you'd actually need to add a splitter back in to drop the power levels a bit. It might help with the errors to as having to high of power levels can cause errors. 

      • kdk1's avatar
        kdk1
        Tutor
        Thank you for the info. When I moved there was a splitter upstairs that I believe the previous owner used for cable tv. I disconnected it to use one for antenna tv and the other for the router. I will attempt to set up the router at the service drop behind the house.
  • I’ve narrowed it down to whatever this is. When I join the cable without this on the line my issues seem to go away. Is this just a grounding block or something else?
    • plemans's avatar
      plemans
      Guru - Experienced User

      a couple things. 

      1. thats a moca line filter. If you don't use moca adapters you don't need it as it can cause issues. 

      2. that grounding wire is horrible. 

      3. can't tell but zooming in on the end of that coax cable but the jack looks fine but not sure if the cable is dirty or in poor condition. tough to tell from the photo 

      • kdk1's avatar
        kdk1
        Tutor
        I have been issue free since I bypassed the filter. I think I’m going to replace it with a standard ground block and redo that ground wire. What you say on the cable (and ground wire) is layers and layers of paint and dirt. It really does look like garbage.