Anyone have problems with the car intermittently losing 4G/LTE/mobile network connectivity while powered off / parked and locked?
During this you cannot connect with the app, which is highly annoying.
When entering the car the signal indicator for the network connectivity is depicted with a diagonal line over it.
When starting driving there's still no network for about 2 minutes, but it seems rock stable when online again.
It has occasionally been slow to connect for a long time, but it really got bad some time after entering 2021.
The SC has claimed it's a software issue for several months, but no fix so far. And they claim that it is not fixable with HW-change, which is obviously false, since it is not a problem for everyone.
It's an early 2019 100D at 2021.4.18.2, and I pay for premium connectivity.
I have searched a bit in the posts, but haven't found any good matches.
Yes, exactly same problem.
I believe the cellular data is disconnected when the car falls asleep. When you start the mobile app, the Tesla servers wake the car up with an SMS so the cellular connection is alive, but I don't think "data" is available.
I've heard of many people having problems waking their car up when they were connected to their home WIFI but the signal where the car was parked was very low. In that case, it's possible that the car favors wifi but cannot communicate to the Tesla servers properly. You could try removing your wifi connection from the car and try again. I know this has helped a lot of people on the local facebook groups I follow.
Maybe, but this is a different behaviour than before, on MCU1.
Same issue here in OZ. After upgrading to MCU2, it loses connectivity for several minutes. When connected it's great. Definitely not a signal strength issue. Many MCU upgraders in Australian are suffering the same issues. I reported it to Tesla Service who advised it's a software issue and they are 'working on a fix' - hopefully this is true.
I have exactly this issue with both of our cars. Only started after each was upgraded to MCU 2. Very frustrating. And worse, I can no longer rely on unlocking the car with my phone or watch. Got caught out after a surf recently. Came back to the car and couldn’t get in.
As mentioned above, I also had very recently my MCU1 replaced by MCU2 and the service degradation was night and day.
Having lived with MCU1 for 6 years, you can throw stone at it for being slow and whatnot, but for sure, connectivity was always (*) ok, within a second or two max. Whether with the app or when driving away, streaming immediate, nav available, all online service immediately available.
Using the phone as a key, although not ideal as with M3 or MY, was reliable.
Now, exactly as described above: app says car is sleeping, waking it up, ... and it can take ages to some times connect, but more often not connect.
When driving away, most of the time it will take about 2 minutes to find LTE or 3G signal. This means no music, no nav, no voice,...
Even my wife noticed and is wondering why I made this MCU2 upgrade.
I raised this immediately to the SeC and the answer is that it is a known firmware issue and a future OTA will fix this.
Reading the OT's and other testimonies above, I understand it is actually not linked to the upgrade, but a longer standing issue.
Of course, for newer owner that only known this situation, it's not nice, but I guess a significant group does not even complain.
For me, having lived with the way it is supposed to work, the difference is huge and I sure hope they fix it soon. Because that aspect is really a downgrade.
Seems similar to the dark backup camera at night: MCU1 was very clear even at night, and owner who upgrade were complaining... while it seems it had always been dark for MCU2 owners.
Well that one (dark back camera at night) was eventually (kinda) solved, so there is hope for this one.
(*) of course, not in poorly wifi or 3G/LTE areas
