Internet disconnects exactly every 4 minutes.

Posted on 2012-08-23
Last Modified: 2012-09-11
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.
Question by:yballan
    LVL 1

    Accepted 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.

    Author Comment

    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!!!
    LVL 11

    Expert Comment

    I would uninstall the adapter and reinstall it as that might correct any corrupt drivers / settings.  See if that solves it.
    LVL 18

    Expert Comment

    You said you checked the power settings I just wanted to see if you set the wireless to maximum as in the enclosed picture.

    Author Comment

    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!!!

    Author Closing Comment

    It was the service provider's lease connection issue.  Thank you!
    LVL 1

    Expert Comment

    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.

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    What Should I Do With This Threat Intelligence?

    Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

    What is IRC? IRC (Internet Relay Chat) is a form of communication between multiple users. It is available freely to anyone with inernet access. IRC is a great way to communicate with others e.g. There is an IRC channel for Ubuntu Linux, which is fo…
    ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
    After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
    Here's a very brief overview of the methods PRTG Network Monitor ( offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

    758 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    13 Experts available now in Live!

    Get 1:1 Help Now