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I recently install mobile broadband on to mt HP laptop computer. When I access any site I get the message Certificate invalid I have Norton 360 installed. Evidently because of this problem I am contacting you on another computer - Have been told it is a PC problem Can you help please it is driving me crazy

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  • HP Master
  • 13,433 Answers

Please start by trying to use the internet with another internet browser, try the new google chrome

http://www.google.com/chrome

download it on the computer you are on now and transfer it over to the other computer on a usb stick or a floppy if it fits.

report back how it goes.

Posted on Jan 10, 2009

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I am trying to download norton security that I just purchased from office depot because my old norton security was out of time. when I put in the product key for the latest norton security I get an invalid...


Certain types of software react strangely when the old software version is present. Make certain you have removed the old version then install the new one. Other wise contact Norton and they will send you a new security pass to access the version.

Mar 20, 2015 | Symantec Norton 360 Security

1 Answer

Certificate error


A "certificate-error" occurs when you access a "secure-HTTP" site (one that uses the 'https://' prefix for the URL) and the "certificate" that the site is "secure" (namely that the site really is the site that it claims to be) is invalid. Certificates have a "start-date" and an "end-date" and certificates can be "revoked". If the certificate is for a different web-site ('web.site.com' versus 'www.site.com') or is revoked, or if the current date is not between the "start" and "end" date, you get the "certificate error" message.

What site did you try to access?

Jan 28, 2014 | Linksys SRW208P 8-Port Ethernet Switch

1 Answer

Certificate error on web site.


This is basically an Internet Explorer 7 Website’s Security Certificate problem! You have to self-sign the certificate on the client computer or add the URL manually to the trusted security zone. When you are trying to access a secure web page, you receive the warning message:

"There is a problem with this website's security certificate. The security certificate presented by this website was not issued by a trusted certificate authority."

Or

"Security certificate problems may indicate an attempt to fool you or intercept data you send to the server."

To fix this issue, you can follow either of the methods:

meth1.jpg
meth2.jpg
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Method 1:

You have to install the Microsoft Windows Small Business Server 2003 (Windows SBS) self-signed certificate on the client computer. To do this, follow these steps:

  • In Windows Internet Explorer 7, click Continue to this website (not recommended).
A red Address Bar and a certificate warning appear.
  • Click Certificate Error button to open the information window.
  • Click View Certificates > click Install Certificate.
  • Click Yes, to install the certificate, when warning message appear.

Note: For Windows Vista users, right click on Internet Explorer icon. Select Run as Administrator.


Back to top


Method 2:

Add the URL to the Trusted Sites security zone:

  • Open Internet Explorer
  • Go to Menu bar > Tools > Internet Options.

    tool.jpg
  • Click Security > Trusted sites > Sites

    sec.jpg
  • Type the URL in the Add this website to the zone text box > uncheck Require server verification >Add > click OK

    trust.jpg
  • Click OK to exit.

    cus.jpg

Now you have added the URL successfully into the Trusted Sites security zone.

Jul 16, 2010 | Dell Computers & Internet

1 Answer

Laptop infected with worm.


Nortons sucks. you should try an anti-virus scan with Malwarebytes, then you should install Avast as your resident protection. 

Be sure, when uninstalling Nortons, to use the uninstallation tool found on the nortons site. if you use the regular windows uninstaller, it will not remove all of it, and it will slow your computer down.

Dec 28, 2009 | HP Compaq Presario v3000z Notebook

1 Answer

We have recently upgraded our Norton 360 - it


I wouldn't recommend installing McAfee as this can also slow down machines. Norton is notorious for this. Download AVG free Anti-Virus or Avast Anti-Virus & a firewall such as Zonealarm. Anti-spyware software is also a good idea. Spybot Search & Destroy & Adaware are good. If the computer is in a corporate environment you must purchase the software as the free licence only covers home use. Uninstall Norton when you have downloaded the programs & before you attempt to install the new programs.

Oct 21, 2009 | 2wire Computers & Internet

1 Answer

I've been trying to connect to my work e-mail from home. My employer allowed staff to have access from other computers. I've had access since February of 2006. Recently my son upgraded windows to windows 8...


You can do either of two things:
In Internet Explorer, choose [Internet Options] under the [Tools] menu selection.
[Advanded] tab
scroll down to the "Security' section
UN-check the "Warn about invalid site certificates"
[OK] [OK] [OK]
close and restart Internet Explorer.

#2:
If not satisfied with iE8, you can un-install it and the previous version that you had will re-install itself (and keep all your favorites, etc. intact).
[Start] [Control Panel]
[Add/Remove Programs]
Scroll most of the way down to [Windows Internet Explorer 8]
[Remove]



Oct 13, 2009 | Computers & Internet

1 Answer

I have a Toshiba Satellite notebook with Vista Home and NAV 360 and recently purchased a Sierra Wireless Mobile Broadband USB modem T-Stick D597. When I try to install the T-Stick, I keep getting an error...


You might want to disable the WiFi that is built into your laptop before installing that device. It is very possible that the built in WiFi is conflicting with that Wireless Broadband Device.

Aug 16, 2008 | Computers & Internet

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