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Internet disconnects exactly every 4 minutes.

Dear Experts,

I have a desktop that is wired to Netgear WNDR3400v2.
All other wireless devices seem to perform fine, but this desktop disconnects exactly every 4 minutes.
After disconnect, it reconnects immediately, so I did not realize it until I started to download files.
I am running Windows 7 Home Premium, I cleaned up temp file folder as well as Prefetch folder, and scanned for malwares using Malwarebytes and SpyHunter.  It had some Trojans, but nothing awful, and I was able to remove them.

I also looked into Power settings, to make sure nothing goes into sleep or hybernate.

What bothers me is that it is precisely every 4 minutes.  What could be the cause of it?
Please advise.  Thank you.
1 Solution
There's a lot that *could* be going on here, but your situation reminded me of something we dealt with a little while back.  How does the PC get its IP address?  Is there any chance that the DHCP lease is that short?  4 minutes seems impossibly short, but you never know.  

The good news is that you can rule this in or out really quickly. An ipconfig /all will give you the DHCP server and the lease expiration length (assuming you're not statically addressed).

it's a start, anyway!  Hope this helps.
yballanAuthor Commented:
Thank you, milsystems,

I will go on site and test out your theory, but it makes a lot of sense.
I will report back to you as soon as I get results!!!
I would uninstall the adapter and reinstall it as that might correct any corrupt drivers / settings.  See if that solves it.
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web_trackerComputer Service TechnicianCommented:
You said you checked the power settings I just wanted to see if you set the wireless to maximum as in the enclosed picture.
yballanAuthor Commented:
Hi, Experts,

Sorry for the delay, I have not been able to go on site, I should be there tomorrow to perform tests that you have suggested, and I will report them back.

Thank you!!!
yballanAuthor Commented:
It was the service provider's lease connection issue.  Thank you!
Awesome!  I'm a little surprised that we got that on the first try, but that's great!  :-)  Glad to hear that we could help.
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