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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
Network Setup
- 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.
Maybe I am missing it from your post, did you uninstall and re-install the driver(s) for the Ethernet , did the driver(s) just update before this started? – N4TKD – 2011-06-16T21:23:20.467
No, haven't touched the drivers, though there were a fair number of Windows Updates in the past two days. Should I just back off to a generic MS driver? – Tom – 2011-06-16T21:39:22.007
1Is the Mac on the same AP as the win7 box. Also I am a little confused since you mention plugging into the access point and not connecting wirelessly. Is this a true access point or does it also have layer 2/3 functionality (is it a wireless router in access point mode)? Is it possible you are behind a double NAT? – Supercereal – 2011-06-17T20:00:04.250
It's an old Linksys WRT-54G with DD-WRT on it, running as a bridge. I'm plugged into it and it's connected wirelessly to the main router. – Tom – 2011-06-18T15:47:59.487
Just plugged the laptop into the access point and saw timeouts at the same time as the Windows box. Looks like the access point's finally giving up the ghost. Thanks. – Tom – 2011-06-18T15:56:38.273