IPv6 for home internet is changing every day
Since the "upgrade" to IPv6, my public address is changing every day and wreaking havoc with my secure logins for web properties I manage. I don't reboot my modem every day, so it's not like it's fetching a new IPv6. My IPv4, on the other hand, is quite static.
Why does this change every day, and is there a way to decrease that frequency?