We have setup a new server with very fast uplink connection 1Gbps but for some reason the download speeds for part of the clients remain very slow.
In the country where the server resides network speeds between the clients and server are very fast as expected. But when client is in another country the download speeds drop dramatically and we can measure only something between 1MB/s - 2MB/s. This is not a client bandwidth problem - there is plenty available.
How would I go debugging this problem? Reading from the Internet I suspect this could be a packet loss problem somewhere in the path from client to server. Can traceroute pinpoint the problematic node?