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Lenovo randomly looses internet connection but can still connect to network drives ect ...

Posted on 2008-06-23
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Last Modified: 2013-11-17
Have a Lenovo T61 laptop, randomly throughout the day loose internet connection.  Internet comes back saying not responsive ect ...
Tryed using the Netsh command to reset tcp/ip and problem returned.  Went to lenovo downloaded the driver again for the ethernet uninstalled, installed.  Problem still there.
I can ping all the websites , can connect to internal network drives .. cannot open internet and it wont come back till i reboot.  I cant think of anything else to try.  Did a system restore, still have issues.  I am thinking i will have to re-image machine ...
I would say it may be a firewall issue , but i can hit all the internal drives and ping google, yahoo, cnn ect ...
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Question by:dmccormi35
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Expert Comment

by:alikaz3
ID: 21847626
Check your internet settings, make sure "automatically detect proxy settings" is disabled. Go to internet options> connections tab > lan settings. Make sure everything is unchecked.
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by:dmccormi35
ID: 21847696
Did that as well, its set to auto check and lan is all unchecked
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alikaz3 earned 500 total points
ID: 21847875
hhmmmmm ok the next thing I would check, is to log into your router, and check the router's system time. Confirm that your router and the laptop don't have mis-matched times. The reason for this is lets say, router thinks it's 3PM, it sends a DHCP lease to the laptop saying that the lease lasts however many days, from 3PM to 3PM. If the laptop thinks it is 2PM, it won't use the DHCP lease it just got, because the laptop thinks the lease is not valid yet. Check those settings and let me know!
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Author Comment

by:dmccormi35
ID: 21901674
Lease was fine, had my guy in main office check.  Nothing to block my ip or mac address or anything.  I ended up reimaging laptop ... couldnt mess with it any longer .. .
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