Vista intermittent Internet

Microsoft / Windows vista business sp...
November 4, 2009 at 18:58:01
Specs: Windows Vista
Internet fails/hangs intermittently several times/day, only rebooting restores it.
Only Internet is lost; machine can still see/grab files from other machines on the network.
Only this (Vista) machine affected, other (XP) machines can continue to browse.
Running Vista Business SP2, wired connection to Netgear router to cable modem.
Have so far tried all of the following with no improvement:
Disabled power management on the network adapter
Disabled IPv6 in NIC properties
Diagnosed and "Repair"ed connectoid
Checked for newer driver, Windows says current version is most up to date
Updated DNS server to OpenDNS, both this machine and router
Stopped/restarted Base Filter Engine in Services
Enabled upnp on router
Tried to update router firmware, says already most current
Added Registry keys per Microsoft KB article 928233 (Twice, once for each GUID instance)
Run ICRTool.exe (Internet Connection Repair)
Run MS Internet Connectivity Evaluation Tool
Run from a Command Prompt (DOS) box: ipconfig /renew
On the Network adapter changed IPv4 Checksum Offload from Rx & Tx Enabled to Disabled
On the Network adapter changed TCP Checksum Offload (IPv4) from Rx & Tx Enabled to Disabled
Ran TCPOptimizer.exe
Ran winsockfix.exe (this hosed the Internet, System Restore fixed but "did not complete successfully")

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November 7, 2009 at 08:42:47
Some suggestions:

1) Change network cable, maybe there is problem on that network cable.

2) Connect this computer to other router port, maybe it's caused by faulty router port.

3) Connect this computer to other working router, see whether the problem persists, if yes then there is problem on this computer.

Hope it helps.

Home Network & Wireless Network Help

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November 10, 2009 at 13:19:11
Good ideas all.
Tried 'em and same issue still persists :(

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November 12, 2009 at 07:14:08
Too bad.. Have you tried to uninstall/reinstall network card driver? Maybe can try this if you have not done yet.

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Related Solutions

November 29, 2009 at 08:12:53
Good idea...tried...still nada...

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November 29, 2009 at 09:27:56

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December 1, 2009 at 09:05:06

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December 2, 2009 at 06:01:41
Try to remember anything you changed before that caused this problem after that, like program installed or removed, configuration change, etc. Try to back out the change or restore to previous working version and test again.

In worst case, you might need to reinstall Windows.. :(

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December 4, 2009 at 19:55:12
Thanks for the several good ideas. Since last post have:

1) Run from an Administrator Command Prompt (DOS) box: netsh int ip reset.

2) Run from an Administrator Command Prompt (DOS) box: netsh winsock reset.

3) Bypassed everything (Vonage box, Netgear wireless router, Linksys switch) with direct Ethernet Cat5 from the cable modem to this one (Vista) computer only.

and the problem persists :( still rebooting roughly twice a day...

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