Login to hotspot gateway device

I am having the same issue.  Not sure what changed because I have been able to log into the gateway in the past. 

You must use the T-Mobile home internet MOBILE APPLICATION. That is not in the WEB GUI of the newest gateway offering by T-Mobile. 

There was a firmware update to the Arcadyan that crippled the management. Goto the mobile application OR use one of Nater Tater's back door workarounds. 

Of the three T-Mobile 5G gateways solo the Nokia still has management via the WEB GUI interface. The more recent Arcadyan and FAST 5688W both require the T-Mobile home internet mobile application for administrative management. 

The T-Mobile Home Internet mobile application ONLY provides wireless access to the gateways via the home internet WIFI network. The mobile app can be downloaded via the application store for the respective phone.

Well, I downloaded the T-Mobile Home Internet app on my iPhone. I do see my gateway but I see no method for logging in with the ADMIN account. I'm at a loss on how to configure my Gateway now. It seems the only thing I can do is add another WiFi SSID and change the SSID passwords. On initial setup I was able to change the ADMIN password, but now I see no place that prompts me for my ADMIN log in.

Maybe I AM logged in as ADMIN but the interface just has very limited choices? On the MORE tab it looks like I can change the ADMIN password, that why I'm guessing I am logged in as ADMIN. I have the Sagemcom SEG Fast5688W gateway that I received on 4-27-23.

Time to call T-Mobile… thanks for your posts. 

I just spoke with support and they confirmed that the admin feature was intentionally crippled on ALL their home internet devices. No more admin access. I'm canceling now...

So what good is is the admin password if there’s no admin access to the thing except through the app (I DETEST apps)?

Unreal!  How does TMobile expect to keep customers who can't manage their own network!?  Looks like it's time to find a new one.  My AppleTV is now obsolete because I can't do the simplest thing of changing the WPA security.  Never again.

Same here.  The T-Life app sucks and I have zero control over my network settings.  I now have 2 NAS devices that are useless because they cannot connect.  This is after "upgrading" to the 5G from the 4G LTE router.  Not much of an upgrade if the router is crippled by the clowns that run the service.  Time to look for a new provider.  May give Verizon Home Internet a try.  Can't be any worse.