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almost no cars outside of the US with AP1 is getting it
There is always talk about ‘needing a good connection’ to help updates in the firmware threads.Not exactly sure what story you're referring to, boaterva, but if you're talking about getting updates, the actual update download comes from CDNs (content distribution networks) vs from Tesla directly. When your wifi signal is weak, throughput is lowered and packets may be lost, requiring re-transmissions and potentially causing issues in getting the download to complete. Yes, there's some kind of retry/backoff that happens, but there's probably also some limit to how long and hard it will try. As far as the VPN connection, that is low throughput and low packets per second, so it will tolerate a weak wifi signal much better than trying to download MBs or GBs of updates.
What does the last part of your discussion mean compared to the first part? Are you saying the updates don’t come over the VPN? That’s there’s split tunneling? First I’ve heard of this.
Interesting, did not know that, thanks for the info! That puts more interest on having a better connection, as you say.Yes, it's split tunnel. If you capture your car's traffic, you'll see that. Updates typically come direct from AWS. And snapshots (video/pictures captured by your car) are directly uploaded to AWS. I have not looked too closely, but it looks like there's other traffic that goes direct as well. Direct meaning does not use the VPN connection.
Command and control is over the VPN of course. Probably also including the command or information needed to start an update (but the actual update files are pulled from AWS).
I don't buy the 'weak wifi' claim.I haven't received any update since Oct 17 and stuck on 2017.44 until I bought the car to SC last weekend and updated to the latest, now I am receiving the newest updates. It's funny, the claimed I have a weak wifi signal in the garage and I needed either boost the signal or just leave it in LTE. However, I have security cameras inside and outside the garage, they never have any signals problem and the signals are very strong plus I have been receiving updates up till 2017.44, I suspect there is a bug somewhere that causes the update logic goes into lala land and resulted in the no more update bucket.