No 5G Connection

Hi @coma,

Welcome to the Zyxel Community!

To help us diagnose the issue accurately, could you please describe the issue you observed in detail and provide the following details:

1. Device model name
2. Whether 5G service is available in your area, and whether the same SIM works in another device.
3. Screenshots of:
   • System Info page
   • Cellular Info page

In the meantime, please also check the following to rule out common causes:

1. Verify the SIM Card

Ensure the SIM is correctly inserted (chip facing down, beveled corner top-left) before powering on the device. Check its status in the local GUI; if locked, enter the PIN, or contact your ISP for a PUK if blocked. Confirm with your ISP that your SIM is active and has 5G service enabled in your area.

2. Check 5G & APN Settings

In the local GUI, go to: Network Setting > Broadband > Cellular Band

• Set Preferred Access Technology to include 5G or select NR5G-NSA/4G (Auto Switch).
• Enable Band Auto Selection.

If needed, manually configure APN under: Network Setting > Broadband > Cellular APN

3. Improve Signal Reception

Position the device for optimal signal, such as near a window.

Please let us know if the issue persists after the above checks, and we will proceed with further investigation at that time.