Forum Discussion

JM12's avatar
JM12
New Contributor II
8 months ago

Motorola MB8611 connection drops frequently

Hello All, I've been using a Motorola MB8611 cable modem for about 6 months. It's been very reliable and hardly ever drops the connection. Over the past week my modem is rebooting a few times a day....
  • JM12's avatar
    JM12
    7 months ago

    My issue with the Motorola modem ended up being the cable signal into my home was too strong and for some reason there were 2 splitters in the box where the cable goes into my home. Cox did a recent upgrade in my neighborhood. Post upgrade my modem began rebooting a few times a day until about 2 weeks post upgrade when it was rebooting every 20 min. After Cox service adjust the signal and removed the splitters the signal coming into the home was good and not more reboots to date.

    Good to know about the password on the Motorola with a 15 character limit. Shame on them for not documenting this in the instructions when installing the modem. 

     

gmacg05's avatar
gmacg05
New Contributor
7 months ago

I installed this modem in Sept 2023 hooked up to a ASUS mesh wifi system. . Everything worked fine. Today I started experiencing similar symptoms. Multiple re-boot of the modem produced the same result - connectivity for around 5 min, then drop. Connecting to the modem required changing the default username and psswd. I eventually managed to figure out there's a 15 character limit on the passwd, although there's no mention of this. Despite having made no changes to the home network, the error log showed some issues with the signal strength being out of range. I ended up doing a hard reset on the modem and for now, it seems to be working. 

  • JM12's avatar
    JM12
    New Contributor II
    7 months ago

    My issue with the Motorola modem ended up being the cable signal into my home was too strong and for some reason there were 2 splitters in the box where the cable goes into my home. Cox did a recent upgrade in my neighborhood. Post upgrade my modem began rebooting a few times a day until about 2 weeks post upgrade when it was rebooting every 20 min. After Cox service adjust the signal and removed the splitters the signal coming into the home was good and not more reboots to date.

    Good to know about the password on the Motorola with a 15 character limit. Shame on them for not documenting this in the instructions when installing the modem. 

     

    • gmacg05's avatar
      gmacg05
      New Contributor
      7 months ago

      Thanks. Since I posted, my modem has rebooted several times. I will check the log to see if signal strength (too high or low) was the recorded issue. If so, I may have to ask for a service visit to check signal strength and adjust accordingly.

      • ChrisJ2's avatar
        ChrisJ2
        Moderator
        7 months ago

        Hi, there. I'm so sorry for the issues with your modem. I want to help. Please email us the physical address and any other pertinent information to Cox.Help@cox.com with your name and a copy of this forum message. I'm glad to look at it for you.