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CM1150V and AC1600 connection problems
Been using an AC1600 with wifi disabled as a wired router for my CM1150V for a while now with no troubles. Big storm last night (yes, plenty of surge protection). When power came back on, the AC...
You should have only one Ethernet connection to your CM1050V and that is your router. Your router provides DHCP services for the devices connected to your LAN.
Yes I know that's how it should work and that the modem only supports one device connected directly. But the router is not getting connected when it's that one device. While the computer when attached directly to the modem is connecting fine. Which brings me back to the last question. Where is the router supposed to get it's IP address from when it's the one device connected to the modem. From the modem - or somewhere further upstream?
If memory serves, I don't think this is new (the router not getting an IP address through some upstream DHCP server). I think I previously had the router setup to use a static IP address as a work around. Xfinity doesn't really support static IP addresses so maybe something about the storm made the old static ip invalid.
smgillespie28 wrote:Which brings me back to the last question. Where is the router supposed to get it's IP address from when it's the one device connected to the modem. From the modem - or somewhere further upstream?
Further upstream, in my R7800 configuration, Advanced -> Setup -> Internet Setup it shows Internet IP Address - Get Dynamically from ISP. See attached. I have IPv6 enabled and configured as Pass Through.
If you have not done so, power down your modem and disconnect both the coax and power cord. Then power down your router and disconnect the power cord. Wait several minutes, connect the coax to the modem, then the power cord and allow it start and stabilize. You can see when the leds are stable. Now connect the power cord to the router and allow it to boot up and stabilize. The servers at the ISP that assign IP addresses are not always fast and they vary from area to area. I have seen them take ten to fifteen minutes to assign the IP address to a router.
Connecting different devices to the modem via an Ethernet connection without rebooting the modem will not often result in an instant change. The same for making changes with the GUI, you may need to restart your system from scratch (see above) for the changes to take effect.
Thanks I appreciate the help - but I've "restarted from scratch" more times than I can count. The R6260 never worked well with the CM1150V (or maybe never worked well with the xfinity service). I decided it's time for it to go away. I don't want to fight with it any more.
And since it's pretty much impossible to get a non-wireless router on short notice, and I didn't want to risk getting another wireless router that couldn't connect through the CM1150V, I decided to replace the CM1150V with a Moto MT7711. I don't need the wireless router included in the modem - but I do need the built in router capability which the CM1150V didn't have. Not sure what the point was of having 4 ports if only one device could be connected. If nothing else, it certainly was misleading when I initially bought it.
Funny thing is, since I was curious - the R6260 couldn't connect to the MT7711 either. Fortunately, the R6400 could even though it also couldn't connect to the xfinity service through the CM1150V.
Again, thanks for trying.