New
#1
Network speeds drastically reduced overnight.
Issue:Overnight my download speeds have dropped drastically on this PC. Other devices show typical speeds of 65 Mbps down and 10 Mbps up. This PC is showing roughly 5-7 Mbps down and 10 Mbps up on 5 GHz network and around 25 down and 10 up on my 2.4 GHz network. This is consistent over multiple tests and browsers of course.
Info:
- Windows 10-1511 Build 10586.164
- No firewall/AV enabled (Windows Defender disabled in GPEdit.)
- Linksys WMP600N Wireless adapter (802.11 b/g/n Dual band).
- D-Link DIR-850L router (802.11b/g/n/ac Dual band).
What I've tried/checked so far:
- Malwarebytes turns up nothing on full system scan.
- Task Manager / Resource Monitor shows nothing is using network out of the ordinary.
- Tried 4 different WLAN driver versions with the same results no matter which is installed.
- Ran TCP/IP stack reset (netsh i i r r).
- Reset winsocks (netsh winsock reset).
- Flushed DNS.
- Restarted PC.
- Powercycled router/modem.
Attempting Ethernet would be extremely challenging and I'm 99% certain this is specific to the WLAN adapter. Any suggestions or ideas would be greatly appreciated.