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WiFi router sugestions that can use different IP address for Home Internet 5G Gateway

  • 23 June 2021
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I tried to use the Home Internet 5G Gateway/Router in my home network setup, but unfortunately, the router has it’s base IP address (i.e. 192.168.x.x) hard coded into it’s OS, and CANNOT be changed. I have an existing large (for home) WiFi/hard wire LAN network setup on IP base of 10.0.x.x. I have way too many IOT devices, multiple PC’s, NAS’s, and peripherals to think about changing my base IP. If you yourself have done this, you know that once you change the base IP, you can’t go back to reconfigure those devices that ONLY communicate via hard wire.

With that said, I tried the Home Internet 5G Gateway/Router for a day, and I got decent 50-80MBs data speeds, good enough for home use. However, not being able to change the base IP (which is really unheard of for routers) left this device useless to me.

The question, does anyone know of a WiFi Router that can use the Home Internet 5G Gateway/Router as a “modem”, then allow the new WiFi Router to set it’s own IP configuration?

Where I live, I’m a slave to Sectrum Cable (previously Time Warner/Charter), as we have no other internet providers in our area. Any help would be greatly appreciated.

Thanks,

Bill

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Best answer by 007BondMI6 11 August 2021, 17:58

I simply unplugged my existing router from the cable modem and plugged it into the TMobile Gateway. My router picked up a 192.168.12.X address and everything worked. I disabled all of the SSIDs on the Gateway so I wouldn’t have that wifi network enabled. As long as your existing router is set for DHCP on the WAN interface it should work. Everything stayed the same on the home network behind the router.

This is the way to go problem solved.

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I am by no means a networking expert. Just getting that out there…

It sounds as if your “hard wired” devices are using static IP addresses rather than DHCP.  Is this correct?

If not, your devices, when rebooted, should get a new IP from the internal DHCP server in the Gateway,

if so, you can do what I did and put a router in between my local network and the Gateway’s network.

This works great for keeping my network the same as I had it on my previous provider, but has the negative of using a double-NAT, one on the Gateway and the other in my router.  Having said that I do not see any significant differences between connecting to my local network and directly to the Gateway.

 

Hope this helps in some way. :-)

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Thanks for the reply. I understand what you’re saying. It’s just that I have so many IOT devices (almost all on WiFi), I’d hate to be locked out of them because they can’t reconfigure themselves. Like I said, I’d just rather have a separate WiFi/LAN Router connected to the Home Internet box, using it as a “modem”. It would make my life so much easier.

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I simply unplugged my existing router from the cable modem and plugged it into the TMobile Gateway. My router picked up a 192.168.12.X address and everything worked. I disabled all of the SSIDs on the Gateway so I wouldn’t have that wifi network enabled. As long as your existing router is set for DHCP on the WAN interface it should work. Everything stayed the same on the home network behind the router.

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I simply unplugged my existing router from the cable modem and plugged it into the TMobile Gateway. My router picked up a 192.168.12.X address and everything worked. I disabled all of the SSIDs on the Gateway so I wouldn’t have that wifi network enabled. As long as your existing router is set for DHCP on the WAN interface it should work. Everything stayed the same on the home network behind the router.

This is the way to go problem solved.

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Yes, this worked for me also.

I was hoping to use the Wifi on the T-Mobile as a “2nd router” - because I have two already to cover the area I am covering - but that is a no go - because it is a one way street - the T-Mobile Wifi device cannot see the old router Wifi (or hardwired) devices. Double NAT and probably other issues too in the S/W.

so my config is T-Mobile (ethernet cable) Router1 (ethernet cable) Router2.  Router 1 and 2 play nice, T-Mobile just acts like my old modem - and I get the Router1 firewall features too.

I have no idea whether there is any firewall of any kind on the T-Mobile other than NAT.

 

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I ran into this same problem yesterday setting up mine. Why choose 192.168.12.1 ??? Is this intentional, to break as many private home LAN setups as they possibly can?

Then there’s the forced 12+ character WiFi password. My previous password was shorter, easy to remember, and would definitely not succumb to a dictionary attack and would take a while with brute force methods.

Before the T-Mobile High Speed gateway all I needed to do to swap DSL modems out was set the SSID, WiFi Password, and gateway IP. Then it was literally plug-in-and-play. Smart TV, tablets, laptop, printers, my dd-wrt wireless repeater-bridge would all carry on as though nothing had changed.

But not with T-Mobile. For that I’m required to upend the configurations of every single networked device I have. What should have taken me five minutes to setup instead took half the day and I still have to get out a keyboard, monitor, and mouse just to change a 0 to 12 in my media server config.

The four most commonly used gateway addresses for private networks are 192.168.0.1, 192.168.1.1, 172.16.0.1, or 10.0.0.0

If T-Mobile wants to “simplify” setup they should have those four as choices, if they don’t want users to be able to choose whatever address they want. Nearly all routers and modems I’ve encountered are defaulted to 192.168.1.1.

 

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