All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
It is preferable for the enquiring sister to supplicate Allaah to guide her husband to act righteously, instead of supplicating to weaken his relation with his family. No doubt, wasting time in surfing the Internet or watching television is (at least) dislikeable, and it becomes forbidden if it includes watching forbidden matters or neglecting one’s duties.
We entrust our enquiring sister to admonish her husband with wisdom and soft words, explain to him the dangers of wasting time uselessly and the harms of neglecting the rights of wife and children. You may provide him with good books and cassettes that address this matter and you may also seek the help of his relatives and neighbours who might have influence on him, but remember that the most effective means is supplicating Allaah to keep him away from the bad company.
Allaah Knows best.