NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
CM1100 Firmware V10.01.07 - Diagnostics No Longer Accessible
So last week my CM1100 on Xfinity updated the firmware from V7 to V10.01.07. After the update, I can no longer access the diagnostics page from my computer connected to my router. Nothing has change with my PC or my router, only the CM1100 firmware.
One interesting thing is that if I reboot my modem and then start hammering on 192.168.100.1, I will get the page to come up. I can login and briefly see data until the reboot is complete. Once the reboot is complete, the CM1100 stops responding to my PC.
Is there anything I can do to restore access from my PC while behind the router?
21 Replies
Has the modem been fully powered OFF for 1 minute then back ON?
Diagnostics page meaning the Cable connections page or the modems home page in general?
Yes, it has been powered off for 1+ minute, re-plugged and turned on.
Yes. The connection diagnostics at 192.168.100.1. Nothing will load at 192.168.100.1 after the modem completes booting up. Can't even login as the page wont load.
You're not the first that I've seen with this issue. I'm wondering if its a new rollout that locks that away from consumers. I know spectrum has been locking that down as well.
(1) Re: Unable to access the CM1000v2 modem diagnostic... - NETGEAR Communities
Hi badtlc,
Good day!
Welcome to NETGEAR Community!
Thank you for reaching out. Just to clarify, the issue here is only when behind the router, you are unable to access the user interface of the modem if you are connected to the router. Were you able to access it before? What are you trying to do on the user interface of the modem?
Please do not hesitate to let me know if you need further assistance.
Regards,
Oliver
Community Team
olympos1625 wrote:Hi badtlc,
Good day!
Welcome to NETGEAR Community!
Thank you for reaching out. Just to clarify, the issue here is only when behind the router, you are unable to access the user interface of the modem if you are connected to the router. Were you able to access it before? What are you trying to do on the user interface of the modem?
Please do not hesitate to let me know if you need further assistance.
Regards,
Oliver
Community Team
Yes, it worked just fine before the firmware update. I know the firmware update is what broke it as I was aware of others having the issue with this firmware update and so I immediately checked when the firmware updated.
I am just trying to monitor line conditions and event logs. There is work/upgrades going on in my area and I'd like to keep track of what is changing as it changes.
Just to update this after some testing today:
- With my PC connected directly to the modem, I could only access the CM1100 if I used the IP assigned from Xfinity OR something from 192.168.100.x. Using any other 192.168.x.x IP address and I could not access the CM1100 at all. This makes sense as my router uses 192.168.68.1. So neither my router nor my PC can access the CM1100 from that IP address.
- I updated my router's LAN IP to be 192.168.100.2 instead of 192.168.68.1 and set my DHCP range to be 192.168.100.50-150 and it still wouldn't work. I'm guessing this is because my router doesn't know where to send the requests for 192.168.100.1 when it is setup like this. The router would work fine before because it knew to send 192.168.100.x to the WAN port. Now it gets confused and I have no static routing capability with this router.
Is there anyway Netgear can fix the CM1100 firmware so 192.168.100.1 is accessible the same way as before?
So when 1 wired PC connected to the CM modem with out the external router connected, can you not access 192.168.100.1?
I just access mine however I see your FW is much newer than mine.
What does your PC see in this window when connected to the modem with out the router in between?Can you ping 192.168.100.1 with the PC directly connected to the modem?
