egc
2
It is a Broadcom device so I can understand you are using DDWRT
(I also have some of those Broadcom devices still going strong and running DDWRT)
Have you followed the correct instructions to set this up as a Wireless Access Point (WAP) in OpenWRT parlance a BridgedAP.
See: https://github.com/egc112/ddwrt/blob/main/Wireless%20Access%20Point.md
If you have question about DDWRT ask at the DDWRT forum