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

Those suggesting to simply plug their router into the LAN port of the T-Mobile gateway obviously don't any port forwarding to their home devices. Anybody do Remote Desktop to their home computer from outside? Anybody have a NAS at home they'd like to access from outside? Anybody run Pi-Hole ad blocking for their whole home network? Anybody do preassigned IP addresses for DHCP on their home LAN? Anybody VPN into their home? Anybody do SSH into their home machines? These functions are all supported by even the cheapest home routers. None are supported by the T-Mobile home internet gateway. I'm just about ready to return it, even though the speeds are great.

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.

no, the new 5g gateway not only has a different IP (192.168.12.1 instead of 192.168.1.1), but also it has no static IP for home devices. and because it kept rebooting itself, it is assigning a different IP each day for my two printers. this of course creates problems for me.

when will Tmobile make a better firmware update with a basic router control we all need? (static ip, DMZ, port forwarding, etc, which are all lacking now).

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.

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.

Old post, but I thought I would respond with the easy solution. Just plug the gateway into the internet port of your existing router and it will use all the same settings you use now on your internal network (LAN). You will have internet throughout your network but nothing will change as far as you home network internal setup… it will remain the same. All your computers, printers, security cameras, etc. will stay the same.

If you don't currently have a router then get one. It doesn't need to be fancy and they can be had for a very cheap price. As long as the router is configured for DHCP on the WAN ports where the internet plugs in it will just be plug and play. Very easy. Just reboot both devices after plugging in. It's actually much easier to do than to explain and takes less than 5 minutes.

I also like to use my router to provide WiFi for my devices instead of the Tmobile gateway so even the wireless devices will be on the same internal network.

For those wanting remote access, just use a free version of TeamViewer. It works fine and is free. To view cameras, if you don't use a cloud service for viewing since that works already with just an internet connection, just log into a computer at home using TeamViewer (or whatever you want) and view the cameras that way. You can even do that from a phone or tablet is you wish.

Yep, it's a bit to setup everything, but it works well and I use it all the time. Don't give up, just do things a bit different and it's no problem.

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. :-)

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.