Resolved Confusing problem with website and ip addresses

[i-need-mny]

Hello,

i have a confusing problem...
my website and the plesk admin panel wasn't reachable from outside.
Now after a few tests, i found out, that if i delete one specific ip address, the website and admin panel are reachable again - but only for about 30 seconds - then i get an error: "ERR_ADDRESS_UNREACHABLE" if i reload the page.

After a few seconds/minutes, the removed ip address is added again.
Then, if i remove the ip address again, the website is reachable again and so on...

I know this has something to do with the IPv6 protocol.
I have tried to disable this protocol, but the problem persists.

I can't found any useful information in the logs:
- /var/log/messages
- /var/log/nginx/error.log

How can i solve this?

Thank you.

 

[IgorG]

I suppose that problem in that private IP addresses 10.0.1.x are not associated with an external one. Tools & Settings > IP Addresses > click on 10.0.1.x IP and in Public IP Address field add an IP address of the server.
After that check the issue again.

 

[i-need-mny]

Thank you for your fast reply.
In the meantime i reinstalled CentOS and Plesk. Now it works without any problems.
I think there was an issue somewhere else in the system - maybe some config files.

Cheers