Do you have a problem connection to one of the Travian servers? Do you want to know whether it is your own internet connection or the server itself?
Then just check the status page. There you will find a list of all Travian servers world wide sorted by their country:
As shown in the picture above there are green and red helmets. A green helmet shows a working server, a red helmet shows a server which is marked as down. Normally the list is sorted alphabetically, but in case of a problem the countries/servers marked with a red helmet are shown on the top.
By clicking on a countries tag you will be able to see the individual servers of a country in more detail: