Acer Aspire 5738PG Atheros Wireless LAN Driver for Foxconn (AR5B91 and XB63),and QMI AR5B91 for XP x32. It is highly recommended to always use the most recent driver version available. Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Try to set a system restore point before installing a device driver.

Atheros Ethernet Controller Driver Download

This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.