Why is My Device not getting an IP Address from the DHCP Server?

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Zyxel_Jami
Zyxel_Jami Posts: 230 image  Zyxel Employee
Zyxel Certified Network Administrator - WLAN Zyxel Certified Sales Associate First Comment Friend Collector
edited December 2025 in Other Topics

This issue might occur due to incorrect VLAN settings or weak signal strength. Here are the steps to resolve this:

  • Verify that the VLAN settings for the switch port connected to the access point and the DHCP server are correctly configured.
  • Check the signal strength of the connected devices (STA). A weak Wi-Fi signal or heavy interference can cause unstable data transmission, impacting the DHCP negotiation process. A signal strength above -65 dBm is recommended for an optimal connection experience.
  • Test by moving the device closer to the access point to see if a stronger signal allows successful IP acquisition.
  • Navigate to Site-wide > Clients > Connection Log (requires the Nebula Pro Pack) to see the reason for the failed IP assignment. Also verify whether the DHCP pool is full.
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