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MoCA setting disables itself after every modem restart - TG3452A


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Hello everyone. The MoCA configuration on my Arris TG3452A modem keeps going back to disabled after a restart. So every time an outage or anything happens that restarts the router, I have to go to the only part of the house where WiFi works, log into the device, and re-enable it so the extenders work again. If I’m not home, then everyone is up in arms. We work from home, so that’s a problem.

Does anyone have a clue why this setting would switch itself off on a restart?

The thing I’ve had this modem router for years and it used to retain its MoCA configuration just fine. For some reason this problem started a few months ago when we switched to a faster service tier. I can’t say it’s the cause of it, but it coincided with it. I’m wondering if a firmware update introduced the issue.

Two people at my ISP said it must be a faulty unit. They swapped it for a new one. I just tested it by simply restarting it (not resetting it, just restarting) from the web interface. Same problem.

A third person at my ISP said it’s normal that MoCA turns itself off because it’s not a standard configuration. I think I should probably ignore that statement because, well, can you imagine if every device lost its “non-standard” configurations after a restart?

Before anyone asks, MoCA is the only way we found to have reliable WiFi in our house. Before that, we went for years with spotty WiFi because the extenders weren’t able to reliably talk to each other, even if a few feet apart from one floor to another. I haven’t tried mesh, but MoCA works so I can’t say I’m tempted to try something else. All I want to know is why my router’s MoCA configuration isn’t sticking?

Best answer by SURFboard Moderator


TG3452A is not supported by Arris. Arris supports only the retail products that are available on surfboard.com but not the ISP lease products. 

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TG3452A is not supported by Arris. Arris supports only the retail products that are available on surfboard.com but not the ISP lease products. 


  • The Many
  • 1 reply
  • November 26, 2024

Just letting you know I have this same exact problem. ISP lease products will never be supported by the ISPs leasing them, and SURFboard/Arris use this as a weak excuse to never fix their bugs as well. Another sub-standard Arris product which was shipped broken by default, which the company has no intention of ever fixing. What happens when there is a 9.9 CVE remote code execution bug in their modems? Will they crutch on the same weak excuse that it’s an “ISP lease product” and therefore not worth fixing when the bad guys get access to everyone’s home network?


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