Hi,
I am building a Thread network (www.youtube.com/watch with a Rasp Pi 4 as a border router, an nRF52840 DK as an RCP, and an nRF5340 DK as a child to be added into the network. Most of this network works (As the topology in Figure 1 shows) well, but there is something wrong with the network access to the CLI device. When pinging 8.8.8.8 (Figure 2 shows the commands sent to nRF5340 DK via UART), the gateway added the prefix automatically, but the nRF5340 can't receive the return packet. I added the prefix manually, but it still can't receive the return packet. And the router can ping IPv4 addresses (8.8.8.8 or my PC). I suppose there are some extra setups to give the end device internet access.
