Forum Discussion
IP Flapping on Home Internet interfering with access to several online services
I have had T-Mobile Home Internet for a couple of months now. Previously I have had numerous brands of internet service: Verizon, AT&T, Solis(AT$T, Verizon & T-Mobile). With T-Mobile Home Internet I cannot use several sites that have never been a problem:
- I can’t get an FTP connection to work.
- I can’t use my banks bill pay.
- I can’t log in to another financial institution.
I’m told that this is due to “IP Flapping”. I have NEVER had this problem before and have been using the now inaccessible sites for years.
Can T-Mobile fix this problem?
I just went to “whatismyipaddress.com” and checked my IPv4 address repeatedly after about 5 second intervals. I saw it change 5 times with 4 different addresses. It continues to do so just rotating. Prior to this week I had seen the IP address change maybe once every few days or once a week but now it seems to be flipping pretty constantly.
I have seen an article that suggest that T-Mobile shares IPv4 addresses in its operation with the 464XLAT solution. I don’t know why the IP addresses should change as rapidly as they do. T-Mobile has 13,232,896 IP addresses but also “more than 110 million subscribers as of the end of Q2 2022” so if you consider the number of devices each subscriber may use at any given time the numbers grow quite a bit. There is a very good reason they use IPv6. They are looking forward and need to scale the network to continue to expand services.
Interesting information for those who like to know and understand tech things:
Sorry I posted the link that was for Netflix
T-Mobile has 13,232,896 IP addresses and 573 hosted domains.
I'm located in S. Florida and don't see the behavior you're describing. I am able to pay from both Chase and BOA with no problem. My IP stays steady, although I am behind a Mullvad VPN. I disconnected for a few hours to monitor my IP and didn't see it change at all.
What does TM say when you contact them about this?
