Using Gecko OS 2.1/2.0 or ZentriOS 1.5, or any earlier versions on AMW007/AMW037
As reported by many customers, rrror 0x7200 is returned when trying to establish TLS connection with 'some' servers. The error is caused by TLS handshaking failure. It is a known issue, and we have a fix for it. Please read below.
A TLS connection to a server that sends fragment sizes larger than 4K fails. The connection may fail during TLS handshaking, but it may fail at any time after connection if the server sends a fragment larger than 4K.
That is a known issue in Gecko OS 2.1 and earlier (also in ZentriOS 1.5 and earlier). Please see the known issues in the release notes here:
We just released BETA Gecko OS 2.2.9 that has fixes for the 4K issue discussed above. To get access to this release, please issue the command 'ota -b 2.2.9'.
Kindly note that this is a BETA firmware (when this article is published), and once we collect all the feedback from waiting customers, will flip this to release. Beta releases should only be used for test and verification, not for mass production.
Also discussed here: