Just took some additional data on the problem, very interesting…When I disconnect my PC from my home network (internet provided by T-Mobile Home Internet) and instead connect it to my T-Mobile 5G mobile phone’s hotspot - the same rapid IP address changes occur (in my dynamic Public IP address).However I also have a T-Mobile 4G LTE mobile hotspot. When I connect my PC to it, the IP address does not change - it remains stable (at least for the several minutes I tested...).So this problem seems related to devices connected to T-Mobile’s 5G service.One more piece of data - I verified that when connected to the internet through my VPN service (using T-Mobile Home Internet), my public IP address is stable - also the VPN service doesn’t seem bothered by the rapidly changing IP addresses in the T-Mobile system.
I’m experiencing the same very-rapid (once per second or so) changing IP address problem. Unable to log in to a variety of websites (cloud backup provider, webmail at my domain hosting service, drivers license renewal on my state government website, ...). I could log in to these earlier this year so the problem appears to have started recently for me.I actually made a screen-capture video demonstrating my rapidly changing public IP address, anyone can check it out here:Demonstration of Rapidly Changing Public IP addressAs others have mentioned, T-Mobile Home Internet call-in support hasn’t been of much help, but I did speak to a supervisor who understands why this is a problem. I have a support ticket in to their engineering group (no opportunity to speak with them) and he said he will point them to this demo video and keep me updated with status of the ticket. I’ll post any useful info I receive here.
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