06-09-2015, 07:33 AM
From the trace you posted, it looks the delay happens between Amsterdam (6 ms to Hetzner on Amsterdam Internet Exchange) and Stuttgart (1100 ms to Hetzner core). You might e-mail that trace to AMXIS and ask if they experience any problems with this connection, the contact is here: https://ams-ix.net/contact/contact-ams-ix-noc--2. If it is already in-Hetzner issue then contact for their support is: https://www.hetzner.de/de/hosting/support/email. It makes no sense to try to work on your side if it looks like it's outside, so I'd suggest to verify this first.