A friend of mine just bought a HP Envy dv6-1148ca and the LAN and WIFI keeps dropping out.
He has re-installed Windows 8 twice with the same results.
Windows 8 64bit
8GB RAM DDR3 800MHz
750 GB HDD
AMD Radeon HD 7640G
Ralink RT 3290 802.1 bng WIFI adaptor - Driver v220.127.116.11 Date:2012-08-08
Realtek PCIe GBE Family Controller - Network adapter, Driver v8.3.730.2012 Date:2012-07-30
Searches showed others with HP laptops having the same issues, no one seems to find an answer to this problem.
Secure sites seem to be more stable, but do drop out.
Some sites won't start at all, others start but drop out after 1-3 hours.
We have reset the Power Management to not 'Allow the computer to turn off this device to save power' and still the same.
Other laptops on same network are having no problems, including other HP laptops, different models.
Any suggestions are appreciated.