I don't know if I should post this here or in the Laptop boards, but I'll try to explain as best as I can. I have a 1 year old Asus X75A laptop running Windows 8.1 that recently started to drop packets intermittently. The only thing that changed in my environment is that my ISP upgraded me from ADSL to a fibre connection. My laptop uses an integrated Ralink Wireless adapter.
If I ping my modem sometimes the time would be anywhere from 300ms to 1500ms or it would return that it has timed out. Event viewer sometimes shows two warnings with the following info, one for ipv4 and one for ipv6.
Log Name: System
Date: 2014-07-25 11:25:31 AM
Event ID: 4291
Task Category: None
The network adapter with hardware address F4-B7-E2-53-1A-D1 has indicated packet coalescing capability without indicating support for one or more prerequisite receive filter capabilities (IPv6 0x00000000).
<Provider Name="Tcpip" />
<TimeCreated SystemTime="2014-07-25T15:25:31.485850100Z" />
Sometimes disabling the wireless adapter and re-enabling it temporarily solves it, sometimes it has no effect. I've tried uninstalling the driver, installing the latest one from the ASUS website. I scanned using Malwarebytes and some other online scanner in case it was malware. I ran sfc /scannow
which kept failing at first until I ran dism /online /Cleanup-Image /RestoreHealth
which appears to have worked and solved the problem for a while, but a few hours later I started dropping packets again. I also tried resetting tcp/ip by running netsh int ip reset c:\resetlog.txt
but I still get the problem.
Is there anything else I can try? I want to exhaust all of my options before I try refreshing the system.