service registry to nacos error: com. Alibaba. Nacos. API. Exception. NacosException: failed to the req API:/API// nacos/v1/ns/instance after all the servers ([192.168.175.100:1111]) tried: java.net.ConnectException: Refuse a Connection (Connection union)

after looking for a long time without finding the reason, it turns out that as long as you modify spring.application.name, it can be restored to normal:

so that it can start normally, which is very strange.

sometimes stops the service, restarts it and can’t be registered, and then changes the service name again.