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Solved
How to Change WAN IP Address
C7000 Nighthawk - AC1900. Firmware Version: V1.01.34
I am trying to change my WAN IP address (my public IP address, not the private addresses).
Some information:
- I called my ISP and they said my public IP is assigned dynamically
- I have power cycled my modem in intervals of 1 minute, 10 minutes, and 8 hours, without the WAN IP address changing.
- I have tried ipconfig /release and ipconfig /renew. This did not change the WAN IP address
- I am not going to MAC address clone.
So...how do I change my WAN IP address? Thank you!
No problem. The issue with my setup was that I was using a router/modem combo. To fix my problem, I had to buy a dedicated router, and switch the modem/router combo to only modem mode.
After I had one dedicated modem and one dedicated router, I was able to mac address clone the router (or change the routers MAC address). Once I changed the routers MAC address, my public IP address changed. I can repeat this process whenever I want.
You can buy a router for ~$50. MAC address cloning is the easiest way to change your public IP address.
25 Replies
> I am trying to change my WAN IP address [...]
Why? Your (unspecified) ISP determines that.
> o I have tried ipconfig /release and ipconfig /renew. [...]
Where? On the C7000 or on some Windows system?
> [...] This did not change the WAN IP address
Not amazing.
> o I am not going to MAC address clone.
Because?
> So...how do I change my WAN IP address? [...]
Talk to your ISP? Reverse your decision on the MAC address?
My ISP is Xfinity.
I've tried to release and renew the lease both on my pc and on my modem.
Sorry for the confusion, I meant I CANT MAC address clone since the modem (C7000) doesn't offer the feature . However, if there is another way to MAC address clone, I would totally be willing to do so.
I've talked to the ISP many times and all they say is that the IP should change "from time to time". I've had the same dynamic IP for many years, and I've tried many times to change it, but it's very sticky.
Thanks for the reply.
> Sorry for the confusion, [...]
Same here. I was thinking of my DSL modem+router, which does allow
the user to change the router MAC address. Cable-TV ISPs depend on
modems having unique (and fixed) MAC addresses for access control. They
don't want your neighbor tapping into your cable and having his modem
impersonate your modem.> [...] but it's very sticky.
If you can't persuade your ISP to jostle things a little, then you
might be doomed.