F451 Error - Unable to link T-Mobile home internet phone number

I'm seeing a lot of complaints about this, which does not give me a good feeling about switching to T-Mobile. For people that are only Home Internet customers, not matter what we do, we can't create an account. One method of creating an account says it doesn't recognize the email address, but then if you create a forum account and try to link the phone number you are give with the Home Internet account, it give the Service Unavailable error. This is really bad and they will end up losing customers because of it. It's insane to me that so many people have reported this over the last year or so, including some people making many calls to customer service, and they still haven't fixed the problem.

I'm dealing with this now and no one can help me

Having the same issue and tech support couldn't help either. This website suggests it's all about ad-blockers: https://www.reddit.com/r/tmobile/comments/n9xfok/tmobile_customer_portal_full_of_unnecessary/

Ugh, this is happening to me atm. Out of the blue my T-Mobile account became disassociated with my home internet phone number I've been paying for and using for over a year.  I have a ticket in with support but no reply after two days.  
 

Was your issue ever fixed?

I am having exactly the same problem.

Two calls to customer support have been useless.

We repeat the same steps and get the same results, and then I'm asked to hold for a technician. Each time I give up holding after 20 minutes.

I have tried various desktop and mobile Web browsers, have disabled all ad blockers at all levels, and have even tried using three different Internet service providers (my old one, my new T-Mobile home Internet service, and cellular data on my phone).

Note that we should, in theory (I haven’t tried) be able to pay our bill as a guest (an option below the option to log in), but this does not allow us to see the account details, plan, usage, etc., so it is not a solution (even if it actually works and accepts a payment).

It's clear that T-Mobile has lousy computer systems (the series of serious security incidents makes that painfully and publicly obvious), but my experience is that T-Mobile also has no effective customer service. Although we talk with real people in the US, they are as uninformed and unhelpful as contract call center workers overseas, and there is no escalation staff (endless wait on hold until customers give up).

I really regret providing my biographic details, including my Social Security Number, to T-Mobile to sigh up for this service in-store.

Since online account access just doesn’t work for T-Mobile home Internet customers, and there is no help, I’ll just return the device to the store tomorrow.

My main piece of advice is NOT to cancel your existing Internet service. Thank God I did not, and my only losses are my personal data (wish I hadn't trusted T-Mobile with it), my time, and the cost of transportation back to a store (which must be a corporate store; franchises don't handle T-Mobile home Internet).

Same here….. Home internet only. I have created T-mobile ID but I can't link the "phone number" associated with the device……. Hour and a half getting my intelligence insulted by customer service with no result…..

https://www.t-mobile.com/content/digx/tmobile/us/en/home-internet/troubleshooting-support.html?INTNAV=tNav:ContactUsAfter 3 months of asking questions and trying to figure out how I can, create my T-Mobile ID, because "not email used to create account" etc, u know. I was thinking this was a recent issue. Lmao, after coming here and lookin around. This is a 2 year ongoing problem and sum executives, super management, and all your top IT should all be fired! 2 years and none of you have the ability to create a fix, #fired. Well I think I found a way and I don't believe a "cookie" is causing the problem. I went back to my initial order emails and tried every link sent to me. One worked and was able to create T-Mobile ID. I leave the link below "lol I think this is the one I used". If not, lmk and I'll grab a completely different link from my sign up emails from T-Mobile. Good luck B&L

https://www.t-mobile.com/content/digx/tmobile/us/en/home-internet/troubleshooting-support.html?INTNAV=tNav:ContactUs

Guess what? Still happening. I purchased the home internet service through a store for my son's apartment. I'm receiving emails from T Mobile on the email address that I used to sign up, including confirmations that I just paid the bill. But I cannot link the phone number related to the internet service to my T Mobile Id. Customer service had me jump through a dozen hoops. None of them worked. Did anyone ever figure this out?