sudden network loss....

[orion456]

I have this strange problem with my computer access to the net. Upon booting the system works normally with proper access to the net. Within 5 minutes, suddenly my network access is cut off and neither firefox or IE can access the net. They don't show an error, or an inability to gain access, they simply hang while saying "loading". Except the load never takes place.

Using repair on the net icon, produces a normal response saying all is fine and I have an net IP. IPconfig tells me all is well. I can use the Ping command on google dot com and it returns normal results.

I cleared the cache, turned off windows firewall, plugged into another network controller and another network access port, all with no effect.

A virus scan using AVG shows all is normal. I did a system restore to bypass some auto updates that took place, but it had no effect.

The only way so far to fix the problem is to reboot, in which case all is well for a few minutes until net access is lost again.

My FAH clients can't access the web either, so they stop producing until I can reboot.

Another piece of the puzzle. HMF the FAH tracker, continues to update correctly over the net - the the net actually works, its something blocking IE and FireFox from access.




Any ideas on how to track this down?

I am beginning to suspect FireFox's latest update. I'm not sure how to undo that update though.

[I.M.O.G.]

Make any progress on this one?

It seems only TCP is breaking, as ping to google still works which means you have internet connectivity and DNS is still working.

When the connection breaks, try running this from the command line and see if you can again access the internet:
netsh int ip reset c:\resetlog.txt

If that fixes it, it may not fix it for long - but it will tell us a bit more about your problem.

[orion456]

I believe I have fixed the problem by using MSCONFIG to turn off several "unknown" services that were running including:

Lava Ad-Aware
Apple Mobile
Bonjour
iPod
Sandra Data
Sandra Service
Windows Media Player Network Sharing Service
Yahoo Updater

I don't know which one of those did the trick, because I disabled them all. I don't see any reason for any of them and none are recent additions as far as I can tell.

So far my connection has remained fine for 24 hours. Perhaps some recent update conflicts with those - Adobe and FireFox come to mind as updates I couldn't seem to undo.

[I.M.O.G.]

Glad you got it fixed, thanks for the update. If it returns, I'm subscribed to the thread and will be watching. Seems like an odd problem, and an even more odd resolution.

[PeddlerOfFlesh]

It seems only TCP is breaking, as ping to google still works which means you have internet connectivity and DNS is still working.



How do you figure DNS is still working?

Also, back in the XP days, I did a lot of "netsh winsock reset"s after spyware had been removed. It'd latch onto the LSPs to redirect things to ads and stuff, then when you remove the spyware it just wouldn't be right.

What OS are you on?

[I.M.O.G.]

When you ping google.com, it has to do a lookup to figure out which IP the packet is going to. It's a pretty safe bet that DNS is working if you attempt a ping and do not get an error about the host being unrecognized.

Could always do an nslookup when having the problem to affirm or disprove DNS functionality, or do an ipconfig /flushdns then attempt the ping... But I'm willing to bet dollars to donuts its safe to say DNS is functioning when he's experiencing the issue.

[PeddlerOfFlesh]

When you ping google.com, it has to do a lookup to figure out which IP the packet is going to. It's a pretty safe bet that DNS is working if you attempt a ping and do not get an error about the host being unrecognized.

Could always do an nslookup when having the problem to affirm or disprove DNS functionality, or do an ipconfig /flushdns then attempt the ping... But I'm willing to bet dollars to donuts its safe to say DNS is functioning when he's experiencing the issue.

I just missed the part of him pinging google ;).