Duo - DHCP Fail

We have a device at a location that cannot connect to the network. It appears to connect to the router successfully, but the log indicates "“DHCP fail, ARM_WLAN_WD 5"” and network errors 11 and 6 alternate.

The router allows connections from other devices so its DHCP server is running and giving addresses. Any ideas how to debug on the Duo side? The customer does not have knowledge of the router aside from the model “Fritzbox 7450”.

this might be a possible solution in your case,

I saw that, but static was not an option in this case. The issue was ultimately traced to the router. By disabling the “Mixed Mode” it started working.