Eiffel Towers Den Bosch bounced back from last week's 13-point home defeat in the EuroChallenge Top 16 to Belgacom Liege by thrashing Telekom Baskets 83-63 on Tuesday.
Five members of the Dutch team hit double figures in points, led by Kees Akerboom's 16.
Dean Oliver and Anthony Richardson contributed 15 apiece for Don Beck's winners.
The Dutch outfit took command for good with a 14-3 first-quarter surge that left them on top 29-15.
The advantage ballooned to 38-20 with 2:38 to go in the first half after an Akerboom three-pointer and they led by double digits the rest of the way.
Winsome Frazier had a game-high 21 points for Bonn, who are now 0-2 in Group I.
They take on Belgacome Liege next week while Eiffel Towers take on unbeaten Cholet.
Michael Koch, Head Coach Telekom Bonn:
Basically we weren't ready and there's no excuse for that. We know it's tough to win games in Europe, but we just didn't deliver.
Don Beck, Head Coach Eiffel Towers:
Credit to all my players for executing game plays well and bringing a high level of activity. I know Bonn can play better, I didn't expect a game like this. I expected a fight. But we can't get carried away. We've got plenty of games to play.
Patrick Flomo, Telekom Bonn:
I can't really add to the coach's words. It just wasn't there tonight.
Devonne Giles, Eiffel Towers:
We were able to counter their run just before the half. But it's just a win. Hopefully, we can capitalise on this and continue our run.