Mine is on 1.25.0, and locked up back on the 11th. I have an open case with Tesla support to diagnose it, and have resisted the urge to reset the gateway myself, hoping they can get to the bottom of it.
I can PING the IP address connected to my Wifi, and the 192.168.91.1 IP address when connected to the TEG-XXX WifI, and all that low-layer networking works fine - but the builtin webserver API just timesout.
Working through Tesla support is like trying to swim through honey. Any question or request for update results in a 'Lets give level 2 48 hours to monitor whats going on', and with timezones not lining up and no level 2 on weekends, the best I've managed is a question from Level 2 left on an answering machine about once per month. That, and every second request being to make sure I'm using Chrome browser, and have cleared the cache.
The last useful bit of info, was that 'Level 2' were able to SSH into the gateway remotely, and can access the webserver pages and API remotely, so they can't see the problem over there in Tesla HQ. To Tesla support the gateway web API seems to be working OK.
Really really wishing I had a gateway with a magic reset button. At this rate it will be 2019 before I can get the gateway rebooted remotely.