I'm having serious connectivity issues in Windows 7 and I'm out of diagnostic ideas. Here's way too much detail:
- Machine is about 6 months old, haven't had a problem up until yesterday.
- Internet connection comes and goes, 'ping google.com' sometimes works, sometimes shows terrible latency and often times out.
- pinging Google on my other machine (Mac laptop on same wireless network) works fine. No network issues.
- First noticed the issue yesterday while running a VMWare VM-- all of a sudden, I could not connect to the VM by hostname or IP address
- Cable modem
- Wireless router
- Wireless access point (running DD-WRT) that Windows 7 machine is plugged into via a Realtek PCIe GBE Family Controller ethernet port on motherboard
Things I've done to eliminate suspects
- Called cable company to confirm they didn't see any cable modem issues
- Reset router and replaced ethernet cable running from modem to router's WAN port
- Replaced ethernet cable between Windows 7 machine and access point
- Unplugged from access point, installed brand-new wireless NIC into machine, still saw issues
- Shut off IPv6 on all network adapters on machine
- Killed Windows Firewall
- Disallowed Power Management's "Turn off device to save power"
- Tried static IP and DHCP
- Disabled VMWare adapters
I've walked through most of the ideas in this thread, including starting in Safe Mode with Networking (no difference) and the netsh resets.
EDIT: It seems to happen about a minute after the machine boots up. I cannot get System Restore to work.