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Forum Discussion
New CM1200 - self-assigned IP address via Ethernet Connected Laptop - NO Internet
New Netgear user here, hello! Need help please! Just changed ISP's today (Spectrum to RCN) and with that needed to buy a better modem. Bought CM1200 (running Firmware Version V1.02.02) about 1 week ...
Thank you antinode for the explanation.
The product literature from the CM1200 Data Sheet as well as product description from the .com site list specs as: Number of Ethernet Ports: Four (4) Gigabit Ethernet ports with autosensing technology - and a Product Diagram which shows 4 of the same yellow color ports at the back of the device.
I've checked other sites and forums as well; a lot of folks are under the impresstion that the device has 4 equally usable ports, that directly connect the modem to up to 4 devices via ethernet cable, that all can be used at the same time. The fact that that is not true - misleads folks based on product descriptions, data sheets and product diagrams. Before my purchase I spoke with pre-sales dept and they assured me that all 4 ports directly connected to devices, used in tandem. I was pleasantly surprised (at that time).
I probably could have purchased the CM1000 because we only have 940gig Internet anyway (only bought that speed because of new customer promotion price for 14 mos.) so the CM1200 is not even necessary - and could've saved the $50.
Appreciate your reply though antinode .
Just because it has 4 ports on the back of the CM1200 doesn't mean it has a router or you can connect anything to these ports. Further informnation about this modem says that these ports are for ISP WAN IP addressing on ports 2-4. These are WAN side ports only. So you have a ISP and a business need for having 4 different WAN IP addresses from your ISP, this modem fits that need.
Please don't assume that if a modem has 4 ports that there would be a router. You can assume that for the C series modems, yes this is the case for those series modems as they do have built in router. For the CM series, these modems do not have a built in router. Yes, you may see more than one WAN port on these modems, CM1100 and CM1200 are the only models that have these additional WAN ports for only WAN side ISP assigned IP addresses from them.
cordcutters wrote: