> For the complete documentation index, see [llms.txt](https://docs.piscesiot.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.piscesiot.com/helium-hotspot-p100/f-and-q/firmware-question/unable-to-fetch-dhcp.md).

# Unable to fetch DHCP

1. Confirm the hotspot is using POE power on and connect to router via lan
2. Confirm the lan port mode is 100Mbps lan \[prt mode.
   1. Use an old router that limit 100Mbps
   2. Find the setting in the router to swite the lan port mode of the lan port to hotspot
