I did an update from firmware version RUTX_R_00.02.03.4 to your latest mass production version RUTX_R_00.02.06.1 on a RUTX09 router. After the update the JSON RPC interface does not work anymore. The router does respond to the authenticatio request and sends the session token but all other calls return 6 in the result field. The same problem was found on RUTX11 as well: https://community.teltonika-networks.com/27098/rutx11-json-rpc-does-not-work-after-fw-upgrade
I did a test also with the RUTX_R_00.07.00 (your latest version) but I get the same results.
Have you plan to develop a fix for this bug? If so, do you have any release dates?
please let us know when this issue is fixed!
This is a disaster since downgrading the FW is not possible without loosing the configuration!