@akarchm01 Thanks for providing the screenshots.
It looks like this extender mangles the MAC address of the device when a device connects through it. I.e., instead of sending the router the real MAC address, the RE305 sends a made up MAC address where the first three digits are taken from the repeater and the last three digits are taken from the device.
Since the router identifies devices by MAC addresses, you need to give the device two names in this case: one for connecting directly, another for connecting through the repeater. You can name them mypc and mypc-r, for example. When you assign the device to a profile, you need to assign both names at the same time so that the behavior is the same no matter where the device is connecting from.