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Change Local IP Address of Comcast Router?

GunXpatriot

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Jun 29, 2014
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So I'm a cryptocurrency miner, and as it turns out, I'm having trouble with this new router. Back home, I had a dedicated model and my own dedicated router that I had configured to get these Antminers up and running. My other router has an IP of 192.168.1.1

Unfortunately, this hybrid unit that comcast gave me (both modem and router) is set to 10.0.0.1

For what it is, this thing actually performs better than my old crappy dedicated router. Still, I need to change it's IP address... If I could change it to 192.168.1.1, my miners would be plug and play. Problem is, you can't even connect to the miners to configure them unless they're on the same address as the router, meaning I have to bend the router to their will, rather than the other way around...

Anyone familiar with comcast-supplied routers? If so, how can I change it's address to 192.168.1.1. It's pretty critical. 🙁

Thanks!
 
Solution

Well that's new information. So you've already tried changing the IP address on router but it doesn't seem to save? Is that right? It's worth trying to change the DHCP range as well as the IP address of the router and then saving it in one go. Most routers will update their DHCP ranges automatically, but conceivably it's trying to apply your settings but refusing when the IP address is on a different subnet to the DHCP range. Put both on the 192.168.1.x network and see if those settings stick.

Your other option, of course, is to give up changing the router and just the change the IP addresses of your miners. Set a static IP on any computer to...
Have you logged in to your router to change the settings? There's instructions here: http://customer.xfinity.com/help-and-support/internet/comcast-supported-routers-gateways-adapters/

If all your computers are still on the 192.168.1.x network, then you'll need to manually set a static IP before you can access the router.

The IP you'll need will be:
IP: 10.0.0.11 (in fact, any of the last three digits can be any numbers between 2 & 254 and it will work).
MASK: 255.0.0.0
Gateway: 10.0.0.1 (your router).

Then you should be able to log in to the router. You'll need to change it's internal IP address. If it's running DHCP you also might also need to manually change the IP address range.
Usually giving it something like 192.168.1.100 to 192.168.1.200 is fine. But I'm guessing your mining boxes have static IPs... so make sure whatever their IP addresses are is OUTSIDE the DHCP range you set on your router.

If you're not sure how to manually set an IP address, just google it with your operating system and you should get a bunch of simple how-to articles.
 
That's the problem. I cannot change the ip address of the miners unless they're on the same network. They're on 192.168.1.xxx and this new router is set to 10.0.0.1

I need to change the router IP, but it won't seem to save the new IP I put in... 🙁

Also... On a different note, why is it that a computer on a totally different address can access the router and network, but for example, connecting a new device and bridging it to the computer, would still make that device unable to be used? What's the reason for that, like under the hood?
 

Well that's new information. So you've already tried changing the IP address on router but it doesn't seem to save? Is that right? It's worth trying to change the DHCP range as well as the IP address of the router and then saving it in one go. Most routers will update their DHCP ranges automatically, but conceivably it's trying to apply your settings but refusing when the IP address is on a different subnet to the DHCP range. Put both on the 192.168.1.x network and see if those settings stick.

Your other option, of course, is to give up changing the router and just the change the IP addresses of your miners. Set a static IP on any computer to an address on the 192.168.1.x network (obviously a different address to the miner boxes). Example
IP: 192.168.1.33
MASK: 255.255.255.0
Gateway - leave it blank

You should then be able to use that computer to connect to your miner boxes and give them new ip addresses on the 10.0.0.x network. Once done, set your computer back to "obtain IP address automatically" and you should be good to go.

Is that going to work for you?

Also... On a different note, why is it that a computer on a totally different address can access the router and network, but for example, connecting a new device and bridging it to the computer, would still make that device unable to be used? What's the reason for that, like under the hood?

I'm not sure I understand what you're asking here? What can access the router and what can't?
 
Solution
Hmm... So you're saying that if I just bridge the device to my laptop, and have my laptop on 192.168.1.x, I should be able to access the miner, then config the miner to be at 10.0.0.x?

...

Welp... Worth a try. Let's hope this works. If it does, I'll have definitely learned something new. Or at least relearn. It's been a year since I did this last. Thanks so far, guys.
 
Alright... I disconnected from the router, changed my laptop's address to 192.168.1.73, as opposed to something on 10.0.0.X... Then bridged the miner. Was able to get to miner's address of 192.168.1.210 and .215 respectively, then changed them both to 10.0.0.210 and 10.0.0.215 respectively...

Could no longer connect. Changed laptop's IP back to 10.0.0.73, connected back to the router, and boom, was able to access both miners on the 10.0.0.X addresses.

Thanks for your help, guys! Was much simpler than I thought it was. :)