No devices registered in Vpanel

[VOIPoTim]

My question is, why didn't it re-register by itself? And also why does the adapter always think it's registered when it obviously (as evidenced from the Devices vPanel page) is not?

They should be.

That's what we keep asking Grandstream and they don't have an answer for.

The PAP2Ts and Grandstream 286 (older models) re-register almost instantly.

When 502's don't re-register (not all the time), they have either an "Internal Server Error" or "Segmentation Fault" error.