Similar story, we saw that one particular IP address in a public cloud network had a 3% TLS handshake error rate. We diverted traffic and then analyzed with wireshark. We found one particular bit was being pulled low (i.e. 0 -> 0 and 1 -> 0). HTTP connections didn't notice but TLS checksum verifications would randomly fail. Had a hell of a time convincing the cloud provider they had a hardware fault- turned out to be a bug which disabled ECC on some of their hardware.

Aside: I'm surprised you got a TPMS programming tool instead of a set of steelies. Big wheels? Multiple winter vehicles?