How to Resolve PoE Issues on USG FLEX 500H
Zyxel_Kevin
Posts: 922 
Zyxel Employee
Zyxel Employee
Question:
Why is my USG FLEX 500H not providing power to PoE devices
Answer:
If your USG FLEX 500H is experiencing issues with PoE after a firmware update, follow these steps:
- Ensure that you have performed a cold reboot by unplugging and replugging the power cord. A cold reboot is different from a simple software reboot or pressing the reboot button.
- Verify that the PoE Power Budget does not exceed 30 watts. The USG FLEX 500H has a total PoE power budget of 30 watts, which needs to be shared among all connected devices.
- If only one device is connected and it works fine, but issues arise with multiple devices, it indicates the power budget is being exceeded.
You can check by following command:
usgFlexH> cmd poe-state
For example:
0
Categories
- All Categories
- 429 Beta Program
- 2.6K Nebula
- 163 Nebula Ideas
- 112 Nebula Status and Incidents
- 6K Security
- 350 USG FLEX H Series
- 291 Security Ideas
- 1.5K Switch
- 78 Switch Ideas
- 1.2K Wireless
- 42 Wireless Ideas
- 6.6K Consumer Product
- 261 Service & License
- 406 News and Release
- 87 Security Advisories
- 31 Education Center
- 10 [Campaign] Zyxel Network Detective
- 3.8K FAQ
- 34 Documents
- 34 Nebula Monthly Express
- 85 About Community
- 82 Security Highlight