Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wl3/STM32WL33/MISC/RRM_UDRA_CTRL#0x0
RRM_UDRA_CTRL register
Action bit: write 1 to request a RRM-UDRA command.
https://github.com/modm-io/cmsis-svd-stm32