Compatibility issue with TP-link TL-WN751

  • Hi, i recycle and old CPU with Asrock N68-VS3-UCC, Sempron 145, ATI HD5450 and a TP-Link TL-WN751 but the WiFi card it's doesn't work Ok. Maybe is too old, and my question is if the TP-Link TL-WN851ND is compatible to buy one of this card.
    The WiFi is showing "Ready" and i can browse my intranet, but, the green light on the card never lights, and i can't play any movie.
    I hope a quick answer.
    Thanks =)