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Forum Discussion
Web admin interface does not respond when modem loses downstream link (CM500)
Hi, I have a CM500 cable modem. It has an administrative web interface at http://192.168.100.1/ It is connected to a router. I've noticed that when my ISP has an outage, the administrative web in...
Thanks FURRYe38
So netgear allows ISP firmware to somehow configure or control access to the web interface? That is very strange but I guess if it's known that this is possible then sure. Is there a known precedent for that where someone else has seen it happen?
We use the term "firmware" with cable modems sometimes as if it is monolithic. Is it?
Specifically, does the ISP have the ability to send a new or tweaked version of 100% of the firmware that runs on the modem? Could the ISP create their own custom admin web interface and replace the existing one? Or is there a component of the firmware that is fixed and not updatable by the ISP?
Or conversely, if it really is monolithic, does the ISP have to distribute the code (binary) for the admin web interface back to the modem every time they do an update involving "normal ISP stuff" (like I dunno the channel bonding configuration) even though they don't want to change the web interface? Does netgear give these web interface binaries to the ISP so they can be redistributed during an update?
I have not tried doing a factory reset and disconnecting the coax and trying the web interface but if I can find a good time to do that, I will.
What series of modems (since not C and CM) allow better firmware management and/or user updates?
scootley wrote:
Thanks FURRYe38
So netgear allows ISP firmware to somehow configure or control access to the web interface? Anything is possible with some ISPs.
That is very strange but I guess if it's known that this is possible then sure. Is there a known precedent for that where someone else has seen it happen? Seen this posted before with some ISPs. Not sure why. Most major ISPs don't do anything with user own modems. Only update FW. For some ISPs, they won't even update FW on user own modems connected to there services. NG develops the FW, then hands it off to the ISP for there testing and certification on there services, once they approve and certify it, then the ISP can push to modems.
We use the term "firmware" with cable modems sometimes as if it is monolithic. Is it? It is the operating system that modems run on. Won't with out it.
Specifically, does the ISP have the ability to send a new or tweaked version of 100% of the firmware that runs on the modem? Yes. Could the ISP create their own custom admin web interface and replace the existing one? Possible. Or is there a component of the firmware that is fixed and not updatable by the ISP? No.
Or conversely, if it really is monolithic, does the ISP have to distribute the code (binary) for the admin web interface back to the modem every time they do an update involving "normal ISP stuff" (like I dunno the channel bonding configuration) even though they don't want to change the web interface? Does netgear give these web interface binaries to the ISP so they can be redistributed during an update? Possible
I have not tried doing a factory reset and disconnecting the coax and trying the web interface but if I can find a good time to do that, I will.
What series of modems (since not C and CM) allow better firmware management and/or user updates? CAX series which are gateway modem an FW that is user updateable is the router portion of the modem. The modem is still handled by the ISP.