Error occured. couldn't connect to host

[MUSTdigital]

It all started after my hoster decided to move his servers to another data-center. Everything is ok, only thing that changed for me is IP-address. And that's where the problem begins.
First, my sites don't work at all.
Second, site preview service shows an error (Error occured. couldn't connect to host)

BTW, I adjusted all dns-zones correctly, so the point is not in them.

Also, i tried '/usr/share/plesk-billing/integration --command=repair-all --hostname=<my domain name>', but there is no such directory as /usr/share/plesk-billing/

 

[IgorG]

How exactly you have changed IP address on Plesk server?

 

[MUSTdigital]

How exactly you have changed IP address on Plesk server?

What do you mean by that? =) I checked for new IPs, then went to /smb/web/edit and adjusted them. After that a deleted old ones from here - /admin/ip-address/list/. Just as I said, that's not the problem. Problem was in Apache and nginx. For some reason they didn't realize that IPs are changed, they didn't even after I rebooted the server a couple of times. Reseller's support adviced me to reboot them separately (on the page /plesk/server/services/) and it worked, so the problem is solved now.

 

[IgorG]

Do you have Plesk for Linux? (It is section about Windows version of Plesk)
Have you tried to use this method for changing IP address - http://kb.parallels.com/943 ?

 

[MUSTdigital]

Do you have Plesk for Linux? (It is section about Windows version of Plesk)
Have you tried to use this method for changing IP address - http://kb.parallels.com/943 ?

Oups, I got to the wrong section, true.. Sorry.
So, as I said everything is ok for now. Next time I'll use method suggested by you, thanks!