SX1302 Using Semtech packet forwarder can not register the gateway

I ping a search engine in China, and it works well.

pi@raspberrypi:~ $ ping www.baidu.com
PING www.a.shifen.com (180.101.49.11) 56(84) bytes of data.
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=1 ttl=55 time=293 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=2 ttl=55 time=309 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=3 ttl=55 time=258 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=4 ttl=55 time=224 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=5 ttl=55 time=274 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=6 ttl=55 time=262 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=7 ttl=55 time=227 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=8 ttl=55 time=182 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=9 ttl=55 time=235 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=10 ttl=55 time=299 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=12 ttl=55 time=282 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=13 ttl=55 time=289 ms
64 bytes from 180.101.49.11 (180.101.49.11): icmp_seq=14 ttl=55 time=310 ms
^C
--- www.a.shifen.com ping statistics ---
15 packets transmitted, 13 received, 13.3333% packet loss, time 436ms
rtt min/avg/max/mdev = 182.291/265.061/310.472/36.998 ms