We disabled VLAN, and it had no effect - we also tried disabling LLDP (also no effect). Whatever it is, it seems to be a bug in the “phone” application itself, not the phone’s actual connectivity (since it does actually have network connectivity, the phone application just doesn’t know it).
We have totally abandon the Granstream product line and are extreamly happy with iur new “Partner” Yealink.
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