Stuck on the step "Starting a secure ..." with Argon + Xenon Mesh

My problem is, I can’ connect a Xenon to an Argon with 1.0.1 firmware. I try with 4 Xenon and nothing, stuck on the step 4 “Starting a secure session with the Particle Device Cloud via Gateway”. If I use the same Xenon with another Argon with 0.9.0 firmware, It’s work like a charm.

What’s my problem ?

Suggest you try with a newer version of device OS - 1.1.0 or 1.2.1-rc.3 if you are OK on RC and not GA.