As I am switching internet service provider soon, as thought it might be interesting to install SmokePing to see if there is any difference before and after. The connection is going over the same phone line, using the same technology, terminated in the same equipment, on the same central, as far as I know, so the variables are the actual router/modem and the ISP.
Shortly after setting it up, I noticed an interesting bump in latency to my virtual private server hosted in Frankfurt:
It doubled from around 10 to around 01 the following day. Huh?! The other host in Germany I have configured in SmokePing shows the same bump:
But all the other graphs are flat. Odd!