My work windows 7 laptop after a while of staying connected to the home wireless network, suddenly spikes upto 100% CPU, task manager does not show any processes over 20%. Rebooting the laptop does not resolve it. The only resolution is to reboot my router, sometimes shutdown—>unplug and plug back in to release the CPU.
Environment and other info. If you need additional info, please post a reply:
- All other devices (1 Macbook pro and 2 additional windows 7 laptops) on the network have no issues whatsoever.
- The only difference between this laptop and other Win7 laptops is that this laptop is part of my work AD domain.
- Router logs shows DHCP, DNS requests from this laptop but nothing seems out of the ordinary compared to other devices on the network. I noticed domain requests from this laptop "IGNORED" by the router.
- Router: ASUS-RT-N16
- Tomato:Tomato Firmware v1.28.9054 MIPSR2-beta K26 USB Ext
- Wireless : Network Mode:Auto, Channel=Auto, Width=40, Security: WPA2-Personal, DHCP enabled
- Was using and external USB HD and also Samba fileshare which have been disabled subsequently to troubleshoot.
- Installed Transmission from optware (but this has been disabled since)
Info on Laptop having problems:
- Windows 7 SP1, on static IP