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RAX80 won't connect to CM2000
My ISP has updated their service from Docsis 3.0 to Docsis 3.1. To take advantage of this (and because I'm being charged more for it), I replaced my existing Netgear modem, which I've been using very successfully for two years now with an RAX80 router, with the CM2000 unit, which is supposed to be plug-and-paly with ANY router.
Long story short,after connecting the new modem to the existing router, I had no internet service of any kind (ethernet or WiFi) via the router, even after troubleshooting with my ISP, Netgtear Tech, with a Tech sent to my home by my ISP. The Netgear Tech and the on-site ISP Tech had a consensus opinion of the problem being a bad modem, both suggesting to exchange it, which I did.
Second brand new CM2000 modem, second time with EXACTLY the same experience. I did connect a laptop directly to the modem via ethernet cable (powered down modem, connected laptop, powered on modem) to confirm internet connectivity ... worked perfectly. After trying unsuccessfully to work his magic, the Netgear Tech advised he would call back after consulting with his peers.
I did some internet searching on my phone while I was waiting and stumbled upon a few suggestions, one of which was to power down the modem, plug a laptop into ethernet port 1 of the router, and then turn the modem back on. I used the same laptop that I'd direct-connected with the modem earlier, and it looked like success!! It turns out that I can plug that laptop into any router port and have internet connectivity, however no other device/computer connected to the router has connectivity, and there is still no WiFi.
Apparently the modem will recognize one (and only one) device when connected via the process described above, and will continue to recognize that unit when both are plugged into a router. I expect that I could do a hard reset of the modem and follow the same process to have a different ethernet connected device recognized, but that doesn't really solve anything.
After a couple of hours of waiting, I called back Netgear myself, and brought the Tech up to speed on what I'd tried, and the limits of my success. His take was that I needed to update the configuration via Routerlogin.net or 192.168.1.1 ... didn't matter, neither successfully connected to the application after many tries, and 4 hard resets of the router.
After working with me for more than an hour the Tech advised that he was opening a ticket for what is apparently a known issue with the router, and that he'd send me an email with replacement options. The email arrived the next day ... the very best option was to connect with this forum. There was no further mention of a known issue, or of replacing the router.
I've since rolled back to the Docsis 3.0 modem (again). I'd REALLY like to use the CM2000 unit with my RAX80 router. I was willing to pay the premium price when I bought it so that I could avoid early obsolescence. Now two years later, here we are ...
Done ranting (I think) ... any ideas of how to make this work, or are the only workable options to either find a router confirmed to work with the CM2000, or return the CM2000 and purchase a unit that combines the modem and router?
- Update ... Have set up the router as a new device. Almost all hurdles now cleared (WiFi working, as is separate AP). Two directly connected laptop issues to overcome, but I'd call this 'solved " now.
21 Replies
So with the CM and RAX powered off and ethernet connected to the CM modem. Powering ON the modem first giving it 30 seconds, then powering ON the RAX, should bring the RAX to connect to the CM modem.
Does the Internet LED on the RAX turn ON and WHITE or AMBER after this is performed?What Firmware version is currently loaded?
Be sure your using a good quality LAN cable between the modem and router. CAT6A STP is recommended.Have you tried a factory reset on the RAX by pressing the reset button for 10 seconds then release then walk thru the setup wizard?
Who is the ISP?
Can you access the CM modem at 192.168.100.1 and capture the cable connection and event logs pages and post them here?
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-routerThanks for your response ... answers to questions are as follows:
I don't clearly recall the color the Internet LED when the unit came on ... I think it was amber, but I wouldn't put any money on that.
RAX Firmware: v1.0.4.120
I'm using a high-quality LAN cable between the modem and router, and a fairly new one at that.I performed a factory reset of the RAX while attempting to setup the first modem on 12/04. I didn't try using the setup wizard in this instance.
- I performed 3 additional factory resets while attempting setup the replacement modem on 12/12. I was unable to make any connection with the RAX while it was connected to the CM2000. When I rolled back to the old modem, the router functioned normally, without a hitch.
- When I logged into the wizard to obtain the cable connection and log data, I had to reset the password, as it had rolled back to the default (password). That would confirm that at least one of the rests was successful.
Mediacom is my ISP
The cable connection file is attached. I'll send the event log files in a separate reply (I'm limited to one attachment here).
Thanks again for your time and insight!
CBC0513 wrote:
Thanks for your response ... answers to questions are as follows:
I don't clearly recall the color the Internet LED when the unit came on ... I think it was amber, but I wouldn't put any money on that.
RAX Firmware: v1.0.4.120
I'm using a high-quality LAN cable between the modem and router, and a fairly new one at that.What is the CAT# of this cable?
I performed a factory reset of the RAX while attempting to setup the first modem on 12/04. I didn't try using the setup wizard in this instance. Might try a reset and walk thru the setup wizard.
- I performed 3 additional factory resets while attempting setup the replacement modem on 12/12. I was unable to make any connection with the RAX while it was connected to the CM2000. When I rolled back to the old modem, the router functioned normally, without a hitch.
- When I logged into the wizard to obtain the cable connection and log data, I had to reset the password, as it had rolled back to the default (password). That would confirm that at least one of the rests was successful.
Mediacom is my ISP
The cable connection file is attached. I'll send the event log files in a separate reply (I'm limited to one attachment here).
All your logs are from a C3700 gateway, do you have these for the CM2000?
- I performed 3 additional factory resets while attempting setup the replacement modem on 12/12. I was unable to make any connection with the RAX while it was connected to the CM2000. When I rolled back to the old modem, the router functioned normally, without a hitch.
- I performed 3 additional factory resets while attempting setup the replacement modem on 12/12. I was unable to make any connection with the RAX while it was connected to the CM2000. When I rolled back to the old modem, the router functioned normally, without a hitch.
Event log page 1 attached
Event log page 2 attached
