Run a trace route on FR.
from R/Ø #2
from R/Ø #3
click either for larger
No claims whatsoever for network expertise, but it would appear that if sabotage is behind this, it's occurring either within one or more Shitcago hubs, or one of the several hops between IL & CA.
Further examination by some true geeks might be warranted re that ntt.net outfit ?
/.02