So my base station Grandstream DP750 has decided to die on me after many years of trouble free usage.
The Power LED keeps flashing on/off about one flash per second. All other LED’s are off including the LAN cable activity indication (orange / green LED’s) on the back of unit. None of the LED blink even once at any time.
My handset, Grandstream DP720 gives following message on the screen: “Info Out of range”.
I am unable to access the web interface, as there is no communication between the DP750 and my LAN setup. Internet is however working fine on all other devices both wired and some few wireless.
I tried to power cycle the DP750 but the error remains with blinking Power LED.
I tried the factory reset with a pin holding the button down for at least 7 seconds, error still remains unchanged.
Finally, I did reseat all cables such as LAN cable, Power cable on their respective both ends. Still have error.
What can I do now?
Note I tried to find topics regarding this problem on this forum but to no vain.