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R6300-AC1750 Router doesn't connect to CM600
My R6300 Router will not connect to my new netgear CM600 cable modem. The internet light remains amber. I've done the appropriate power down/reboots on the modem and router with no success. I've done the MAC spoofing of the address of the computer that I used to set up the CM600 on the R6300 with no success. I can connect directly to the CM600 modem with a laptop and internet is fine (the modem is activated with my ISP). Firmware is up to date on all equipment.
Additionally the router connects to my CM400 without issue and connected to a previous CM600 before its WAN port died.
Does anyone have thoughts as to what I should try next to troubleshoot this?
Additionally the router connects to my CM400 without issue and connected to a previous CM600 before its WAN port died.
Does anyone have thoughts as to what I should try next to troubleshoot this?
I started thinking about firmware after my last post. I did some testing and found that if I reset the reset the router to the factory settings and then reverted to the previous firmware for the R6300 (1.0.2.76) the Router would then connect to the DHCP on the CM600. I could then update to the current firmware and still retain the internet connection. If I applied a saved cfg file to the router from current firmware I could replicate the problem with the internet connection. The repair process was repeated: clear the cfg settings by resetting the router to the factory settings, revert to the previous firmware and then update to the current firmware. Everything was fine with the internet connection with the CM600
16 Replies
- Did you enable Downstream QoS by chance? There seems to be an issue with that setting basically bricking the router in the .18 firmware.
- I tried both without any change
It was enabled and I've shut it off now without seeing a change after power cycling and rebooting. Interestingly, the Router worked fine with a previous CM600 with QoS enabled.
There was something in the .18 firmware that caused Downstream QoS to brick the ability of it to get an IP from DHCP while in router mode.
- Once it's broken there isn't a fix, at least not one that we have found.
So I'm looking at a router that won't connect to theCM600 but works fine with a CM400. I want to besure I have everything clear. So is the issue the router firmware (V1.0.2.78_1.0.58) that won't see the DHCP from the CM600 or is it the firmware within the CM600 (V1.01.12) that wont see the DHCP request from the R6300?
I just want to know since I'm near the return date for the second CM600 and don't want to hang on to it if I'm using a router that cant access the internet through it.
- The reset and firmware rollback has not been successful for me today. I went back to .12 on my R6400 and I am still not able to get an IP through DHCP. I guess I may as well look into the did-wrt option.
Try a 30/30/30 reset and then do a reflash. The 30/30/30 is continuously holding the reset button down for 30 seconds with power to the router on, keep pressing the reset while powering off for 30 seconds, and keep holding for another 30 while powering back on. After the reflash, do the same 30/30/30 cycle and see if the DHCP works.
If you have a R6400 and select the dd-wrt route, be sure to look for the specific firmware release for the R6400. Check out their website and wiki before you take the plunge.
No dice...
