Help-lost internet

[kmj4458]

I lost internet about 7 days ago. Charter tech said modem is good. My son's laptop MAC can access internet through wireless-g 2.4 ghz Linksys. Out of the blue last week when I try to log on with Internet Explorer, I get Internet Explorer cannot display the web page. When I diagnose connection problem, 1) the cable is plugged in to local area connection, 2)automatically got new IP settings, 3) reset modem and router. I get the red X between unidentified network and internet. I have tried many suggestions from things I have read online, and this is a last ditch effort before I throw in the towel. Any help would be appreciated.
Thanks

 

[richc46]

Try going back with a system restore. One week before the problem,
but first
http://www.vistax64.com/tutorials/76905-system-restore-how.html
Make a complete anti virus scan
Download and make a complete scan with malwarebytes.
If the two above show any suspicious activity, do not go forward post here.

 

[kmj4458]

richc,
thanks for your response. unfortunately, 1 of the "fixes" i found must have had me uncheck drive c in system protection, because all my earlier restore points are gone.
p.s. i do have webroot and the scan 8/28 didn't show up anything strange. also, i had previously done a couple system restores (1 went back at least 3 days prior to the problem). so does that help at all? again, thanks for any help.

 

[richc46]

Try malwarebytes and a make a full updated scan now and once a week, even after this gets solved.
After running Malwarebytes
http://windows.microsoft.com/en-US/windows-vista/Troubleshoot-Internet-connection-problems

 

[Slammer]

Also, try booting into safe mode and tell us if it works then.

 

[kmj4458]

slammer- in safe mode the 2 computer icon still has red X and says connection status: unknown - the dependency service or group failed to start. Internet Explorer cannont display the webpage.

rich- do i purchase malwarebytes somewhere. i can't download to the problem computer?

thanks again

 

[richc46]

Malwarebytes : Free anti-malware, anti-virus and spyware removal download
Make sure to get the free version. Then use it once a week, even after the problem is solved.

 

[kmj4458]

After days of trying this, that and the other, here was the solution: I disabled firewall on Webroot Internet Security. I enabled Windows firewall, and internet works again. Maybe there was an update in Webroot that messed everything up? I know malwarebytes is recommended, but should I also keep Webroot antivirus, antispyware active? Thanks.

 

[richc46]

Suggested by most at this forum is
Microsoft Security Essentials and a once a week scan with the free Malwarebytes.
If you want webroot, you can use that for real time protection and use the free malwarebytes for the once a week scan.