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Rebooting a Grandstream GXP2170

This guide shows two easy ways to reboot your GXP2170: from the phone’s menu, or by power-cycling it. Use either method, both do the same thing.

Before you start

  • Finish any active calls. Rebooting will disconnect calls.

  • Rebooting does not erase settings or voicemails. It just restarts the phone.

  • If you use a wired headset or sidecar (EXT), leave them plugged in.

Method A: Reboot from the phone’s menu (preferred)

  1. Press the Menu key (the center round button).

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  2. Select Reboot. (you may use arrows or just press the number # 8 on dial pad)

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  3. When Highlighted press the Menu key (the center round button) to select it.

  4. When asked to confirm, choose Yes.

  5. The screen will go dark and the phone will restart. (it may appear as its not doing anything, but give it about 15 seconds)

Method B: Power-cycle the phone (unplug/replug)

If your phone uses Power over Ethernet (PoE)

  1. Trace the network cable from the back of the phone to the wall jack or switch.

  2. Unplug that network cable from the back of the phone.

  3. Wait 10-15 seconds.

  4. Plug the same cable back into the LAN port on the phone (not the PC pass-through port).

If your phone uses a power adapter (wall power)

  1. Unplug the round power plug from the back of the phone or unplug the power brick from the wall.

  2. Wait 10-15 seconds.

  3. Plug it back in firmly to the phone and power outlet.

After the reboot

  • The screen will show the Grandstream logo, then your extension.

  • Line keys will light as the phone finishes registering.

  • You can place/receive calls once the line keys are solid and your name/extension is shown.

If the phone doesn’t come back up

  • Check the network cable is in the LAN port (not “PC”).

  • For power adapter: verify the power brick is firmly connected at both ends and the outlet has power.

  • Look for on-screen messages like “Not Registered”; if you see this, note it for support.

When to contact IT/Support

  • The phone shows “Not Registered” or can’t make/receive calls after reboot.

  • You see repeated reboots or error messages.

  • Your sidecar (EXT) or headset doesn’t power back on.

Provide your extension number, whether you used PoE or power adapter, and what you saw on the screen after the reboot.

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