Netgear CM1000

[kylaris]

I bought the CM1000 off eBay and It seems to be dead. 

The modem is constantly blinking power (green), downstream(amber), upstream(amber),  internet(amber), and solid amber network.

Is this dead modem? or does it need to be plugged into the cable for extended time for ISP firmware update?

thank you.

[DarrenM]

Have you tried to hold the reset button for 10+ seconds?

DarrenM 

[dem107]

Did you ever get this resolved? I have exactly the same issue.

[kylaris]

After chatting with a Netgear CSR, and reading a few forum posts. 

I've concluded that the modem has corrupted firmware, thus cannot be repaired without a special device.

[Nodism1125]

Hi Kylaris, 

The FW is not corrupted based on the LED pattern you stated. The devide is not activated to your cable internet service provider. 

Have you tried calling your service provider and provide the Cable modem model number,  Serial number and MAC address? 

https://kb.netgear.com/22715/How-do-I-connect-my-NETGEAR-Cable-Modem

https://kb.netgear.com/000036375/What-s-the-latest-firmware-version-of-my-NETGEAR-cable-modem-or-mod...

[dem107]

The lights on my CM1000 are doing the same thing. It doesn't even try to sync up with RCN. RCN tech support says they never see it try to sync. 

You can see the light pattern on my modem at https://youtu.be/hxHL3XHlZv0

[Nodism1125]

Hi dem107, 

Since you purchased the CM1000 from ebay, do you have any information if this modem used to another cable company? Once the cable modem installed to a previous ISP, the modem has a customer FW. 

[kylaris]

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"Have you tried calling your service provider and provide the Cable modem model number,  Serial number and MAC address? "

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Of course, that was the first thing I tried.

The CSR said, "she could see the modem but cannot connect".  So a technician came by and conclude that the FW on the modem was bad.

[kylaris]

---

Since you purchased the CM1000 from ebay, do you have any information if this modem used to another cable company? Once the cable modem installed to a previous ISP, the modem has a customer FW. 

---

So once the modem has been flashed by one company's fw, then it won't take another company's fw?

[Nodism1125]

Hi kylaris, 

Check the Cable modem status by accessing the default IP address 192.168.0.1. 

The user name is admin. The default password is password. The user name and password are case-sensitive.

Click the ADVANCED tab. The ADVANCED Home page displays information about your cable modem

Check the Firmware Version installed.

[Nodism1125]

Hi Kylaris, 

Please contact the ebay seller and ask if cable modem has been de-activated from his account before selling. If the seller still has the cable modem tied to his account or the modem MAC on their file that creates a problem during new activation. 

The type of IP and configuration info get pushed to modem when it goes through activation. 

[dem107]

The manual says the default IP address is 192.168.100.1. Is that incorrect?

[Nodism1125]

Oops my mistake :). The Correct IP address 192.168.100.1.  

[dem107]

I connected my computer directly to the modem and set my computer's IP address to 192.168.100.2. The modem doesn't respond.

[Nodism1125]

Can you ping the cable modem IP address? 

[dem107]

I can't ping it. It doesn't seem like the interface on the modem is up at all. My computer doesn't even show a working Ethernet connection.