I now have the suspition that the "FINGBOX" (physical little round blue device you connect to your network) is the culprit for my internet connection problems.
Every time I connect it, I have problems: ping has 50% drop rate to external ip numbers. As soon as I disconnect and reboot modem everything is back to normal.
Just a warning if you consider buying this. There might be some issues with it. It claims that it can exclude some devices from accessing the network as an option .. there might be some bugs in that feature.. -- actually I have no clue how they would do this without spoofing the routers mac number internally or claiming to be the network access point ..
Karl