You mentioned that you are unable to ping your PC from the local network. Could you please specify whether the devices you are pinging from are connected to the RUT device or the Technicolor device?
Have you tried to disable the firewall on the PC?
Additionally, it would be helpful if you could provide more information about what is currently working and what is not.
Based on the configurations, everything seems to be set up correctly. However, it's possible that the issue is related to compatibility with the Techicolor device. Could you please check if the Technicolor device supports WDS? If it does, we can attempt to use WDS.