Why is my Lightsail server constantly unreachable?

16 GB RAM, 4 vCPUs, 320 GB SSD

Example of a tracert (52.201.63.161), 30 hops max

Hop Host IP Time (ms)

1 _gateway 209.151.144.1 0.076ms

2 100.70.163.241 100.70.163.241 0.302ms

3 172.23.255.89 172.23.255.89 0.120ms

4 172.23.255.6 172.23.255.6 0.128ms

5 ae5-727.cr0-sjc2.ip4.gtt.net 69.174.20.9 2.479ms

6 ae12.cr7-dal3.ip4.gtt.net 213.200.120.106 37.097ms

7 ip4.gtt.net 209.120.154.162 34.562ms

8 150.222.206.219 150.222.206.219 35.174ms

9 176.32.125.239 176.32.125.239 34.710ms

10 * * *

11 * * *

12 * * *

13 * * *

14 * * *

15 * * *

16 52.93.28.84 52.93.28.84 71.838ms

17 * * *

18 * * *

19 * * *

20 * * *

21 * * *

22 * * *

23 * * *

24 * * *

25 * * *

26 * * *

27 * * *

28 * * *

29 * * *

30 * * *