But it seems better with their latest firmware. But I changed to the C9 and the same issue followed.
OK, details are slim to none in your post. If you are using your (unknown) modem to your PC you must power down that modem then power it up after you plug in the new router.
Otherwise the modem locks onto your MAC address.
So that's 2 things.
1. Power up order matters.
2. Firmware must be current for your rev c7.
i have just purchased an Archer C7 and tried to set it up. it will not connect to the internet. it sends out 2.4 and 5 GHz signals but neither lets me receive internet access. I went through the setup guide and since i cannot connect to the internet, i cant complete the setup because it cannot find my type of IP address. I have now given up all hope of ever fixing this myself. PLZ... HELP ME.

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