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Can you explain the situation in a little more detail? Are you getting page not found errors or will IE not open?
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Can you explain the situation in a little more detail? Are you getting page not found errors or will IE not open?

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If you are getting DNS error messages, then you might want to check this out: <a href="http://service1.symantec.com/SUPPORT/ent-gate.nsf/bdc3ea086deed16e88256a94005068a4/6afa55e8c1c6033688256c6e005c1321?OpenDocument&src=bar_sch_nam" rel="ugc nofollow">http://service1.symantec.com/SUPPORT/ent-gate.nsf/bdc3ea086deed16e88256a94005068a4/6afa55e8c1c6033688256c6e005c1321?OpenDocument&src=bar_sch_nam</a>
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If you are getting DNS error messages, then you might want to check this out: http://service1.symantec.com/SUPPORT/ent-gate.nsf/bdc3ea086deed16e88256a94005068a4/6afa55e8c1c6033688256c6e005c1321?OpenDocument&src=bar_sch_nam [http://service1.symantec.com/SUPPORT/ent-gate.nsf/bdc3ea086deed16e88256a94005068a4/6afa55e8c1c6033688256c6e005c1321?OpenDocument&src=bar_sch_nam]

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You managed to get here... ! &nbsp;;)
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Your Q is too generic...please let us know what error message, error code...etc did you received...;-)
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Your Q is too generic...please let us know what error message, error code...etc did you received...;-)

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I downloaded Norton Anti-virus update, and now I can not browse the internet. &nbsp;How do I fix this?
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I downloaded Norton Anti-virus update, and now I can not browse the internet.  How do I fix this?

I downloaded Norton update and now I can not get onto Internet

Software firewalls, also known as host-based firewalls, provide a layer of software on one host that controls network traffic in and out of that single machine. Most operating systems now include firewall software, but many available software firewalls include central distribution, antivirus systems and disaster recovery.

Software Firewalls

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.