My Grandstream HT287 no longer registered

[microtrash]

Can't make or receive call since today

On Grandstream Device Configuration :
Registered: No

The freephoneline application is still working, but not the HT287. Tried to put it on DMZ, reboot it, no luck. I did no change to my network. Any idea ? Thanks

[Fongo Support]

Can't make or receive call since today

On Grandstream Device Configuration :
Registered: No

The freephoneline application is still working, but not the HT287. Tried to put it on DMZ, reboot it, no luck. I did no change to my network. Any idea ? Thanks

Hi there,

Please try to power off equipment- modem, router and ata for at least 15-20 minutes and connect again after 20 minutes starting with the modem.

Try testing the line(s) after this- it should be ok.

Please let me know.

Thanks,

[microtrash]

Problem solved, thanks ! I did power off all equipment, but only for 10 sec.
Power off everything for 10 minutes worked