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Forum Discussion
donawalt
Dec 12, 2022Mentor - Experienced User
Procedure for replacing my modem?
Is there a procedure for replacing a cable modem that is used with a Orbi RBR850 system? I am replacing a CM1200 with a CM2000. I am assuming something like this: 1. Power off RBR850 2. Disconne...
- Dec 13, 2022
The update/activation is complete, I have moved from a Netgear CM1200 modem to a CM2000 modem. Everything is resolved and working well, but there were some interesting moments in the process:
- The biggest is after the activation and everything was back up, I noticed the RBR850 router had its DHCP address pool changed from 192.1.168.1->150 to 172.16.x.x! This caused havoc – some devices got a new DHCP, some did not. I ended up restoring my backup.cfg file and got the router back to the proper 192.168.1.x address pool and router address.
- Speeds are fine – although my iPhone 14 Pro, which has WiFi 6, seems faster. Before it tested around 780/39 when about 6 feet from the router; after, it is 934/41. Directly connected Ethernet computers like my Mac are about the same, 925/40.
- I have two things to upgrade for the full experience – I have a Cat6 cable from modem to RBR850, FURRYe38 recommends Cat6A. Second, my switch is a GS348 NETGEAR 48-Port Gigabit Ethernet Unmanaged Switch, which I am pretty sure does not support 2.5Gbps, which is why direct connect/Eth speeds are the same.
- When the new modem was activated, I went from 4 ATDMA Bonded Upstream Channels to 5! Was that because the new modem could handle it or some other reason?
- To have access/internet capability, I had to power cycle 3 of my 6 smart plugs, 1 Apple TV, 1 iPhone, and 1 of 3 HP printers – likely due to the issues cited in #1.
Food for thought!
FURRYe38
Dec 12, 2022Guru - Experienced User
Let us know how it goes.
If you see issues with the CM2000 online, please post here and include the events and cable connections status page info there:
https://community.netgear.com/t5/Cable-Modems-Routers/bd-p/home-cable-modems-routers
- donawaltDec 12, 2022Mentor - Experienced User
Will do!
- FURRYe38Dec 12, 2022Guru - Experienced User
👍
- donawaltDec 13, 2022Mentor - Experienced User
The update/activation is complete, I have moved from a Netgear CM1200 modem to a CM2000 modem. Everything is resolved and working well, but there were some interesting moments in the process:
- The biggest is after the activation and everything was back up, I noticed the RBR850 router had its DHCP address pool changed from 192.1.168.1->150 to 172.16.x.x! This caused havoc – some devices got a new DHCP, some did not. I ended up restoring my backup.cfg file and got the router back to the proper 192.168.1.x address pool and router address.
- Speeds are fine – although my iPhone 14 Pro, which has WiFi 6, seems faster. Before it tested around 780/39 when about 6 feet from the router; after, it is 934/41. Directly connected Ethernet computers like my Mac are about the same, 925/40.
- I have two things to upgrade for the full experience – I have a Cat6 cable from modem to RBR850, FURRYe38 recommends Cat6A. Second, my switch is a GS348 NETGEAR 48-Port Gigabit Ethernet Unmanaged Switch, which I am pretty sure does not support 2.5Gbps, which is why direct connect/Eth speeds are the same.
- When the new modem was activated, I went from 4 ATDMA Bonded Upstream Channels to 5! Was that because the new modem could handle it or some other reason?
- To have access/internet capability, I had to power cycle 3 of my 6 smart plugs, 1 Apple TV, 1 iPhone, and 1 of 3 HP printers – likely due to the issues cited in #1.
Food for thought!