My network includes a Amazon server and a router and my desktop computer. The router is in another office and the desktop computer is in my home. It didn’t work this morning. All the devices couldn’t ping each other. I tried to use different IP and created different zerotier network. Only once I changed IP, my desktop computer and the router can ping each other. However, it didn’t work again after some time. The Amazon server can not ping the other devices but it can ping website just like facebook and google. I can log in the Amazon server by ssh.
I check the firewall and route table. It seemed to be OK. I would lilke to appreciate if you can offer some solution. Thanks a lot.