GL-RM1 stopped working

I bought this kvm about 16 days ago, everything was fine, it was really fast, but today morning, it stopped working.

The LAN connection is ok, it has internet, even If I turn off the device, it still shows online.
Device led showing power is ok,
application in my router shows this ip/mac is valid and has upload/download.
Is it possible your cloud stopped working ?
when I ping 192.168.4.136 , it will not ping (I think gl-inet disabled it for security reason)
Is there any local shell I can login to device and check log for error ?
Web terminal is also accessible after it connected to cloud, not in this stage.

Access https://glkvm or glkvm.local and export log to us

And we didn’t block ping request