Internet problems with a computer Windows 7 wireless

Hello. My problem is that I have an ACER with Windows 7 computer and I've had it for awhile (about a year or more). He never gave me no internet problem until a few days ago, when he started having connection problems. My computer has been without internet since two and a half days. Whenever I try to look for the problem, he tells me that the computer is connected to the router, but that router is not connected to the internet. I tried to restart the modem and the router several times without success. The thing is that, while my computer does not have internet, my cell phone and the computer of my partner (for laptop with Windows 7) do not seem have a problem using the same network of the internet, which makes me believe that the problem is in my computer.

I have a SB5101U of Motorola SURFBoard Cable Modem and a NETGEAR RangeMax 150 wireless router.

My computer uses an Atheros AR5B95 wireless network card. (My partner runs Realtek RTL8188CE wireless adapter)

Would it be a virus or something? Because I've scanned my computer with my antivirus to find something wrong, but it does not yet detect. Please help me and thanks a lot for any help or advice you can give me.

You have McAfee?  If so, see this "criticism" McAfee reviews -

Some customers may experience a loss of network connectivity and/or errors in McAfee Security Center after a recent update

You should make the fix McAfee, if necessary. There are corresponding communications for their enterprise products.

I had to run their removal of McAfee Development tool a few times before and it caused a problem with the license if the PC was not connected to the internet during the abduction. Due cat of McAfee support reset their files in order to allow the relocation-reactivation. Here is their link cat - McAfee - media contains the link to the cat

I got McAfee, but the connection has started working again on its own so I thought I was clear of problems. However, when I checked it says he was doing routine checks the updates in vain when I told it to do a manually. So stick with McAfee you don't follow their procedure of fix would have upgraded my PC at risk by not updated and, like other McAfee ads have since explained, the application did not refer to its database of threats correctly [and this could explain part of the variability of the symptoms of failure but all involved loss of internet connection]. Actually, I removed McAfee then installed Microsoft Security Essentials rather & my answer IE is faster I knew it [even though I had the Add-ons McAfee disabled for centuries].

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