Don't believe everything you read on the Internet ;-)
The test I linked to: if it says ok now, it will work on Monday. Best to stop worrying.
Regardless of how your setup is built (modem, router, wired, wireless, DSL, cable, ... ): if that test says ok, then your settings are ok.
There's only one exception possible: but even if it's the case, then it will most likely persist past Monday: your ISP might be intercepting DNS requests to the "bad" server and answering them themselves with the right answers - in that case the test I linked to failed and you might have the malware and/or its settings on your system. But any responsible ISP doing that would have contacted you by now and/or will continue to provide this past Monday.