One of our internet-providers is experiencing issues because of a fiber-cut in the Brussels area. We are following this closely, but this fiber-cut may result in slow connections or other connections issues. Our network has multiple internet-providers, so you should still be able to reach the servers in our network. Our supplier has alerted us that multiple cables have been cut due to construction works. Repair should start shortly but we can not give an ETA on when it will be fully repaired.
However, it seems not only our supplier is impacted, but some parts of the "Belgian internet" are hit by this. If you still experience slow connectivity, this might happen on parts beyond our control.
Update 04/07/2017: full redundancy has been restored.