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Port 80 and 443 getting blocked


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#1 AngryHan

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Posted 01 November 2014 - 06:26 AM

Occasionally after about 8 hours of using my computer, I'll find that I can't access any webpages but my internet is otherwise fine. I ran Chrome connectivity troubleshooter, and was informed that my ports 80 and 443 were blocked, so basically no web access. Any idea why this is the case? The problem gets fixed if I simply log out and back on again. I'm using Windows Firewall and Windows Defender.



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#2 dc3

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Posted 01 November 2014 - 12:24 PM

Go to the Control Panel and click on Internet Options, Click on the Advanced tab.

 

Scroll down to Use SSL 2.0 and Use SSL 3.0.  Make sure there is a check in Use SSL 3.0.


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#3 AngryHan

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Posted 02 November 2014 - 04:19 PM

SSL 3.0 is already checked



#4 dc3

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Posted 03 November 2014 - 11:56 AM

For most issues that involve Internet connectivity, start by using the Network Diagnostics tool to identify the source of the issue. To use Network Diagnostics, follow these steps
 
Automated troubleshooting
 
1 Click Start, and then click Help and Support.
 
2. Click the link to Use Tools to view your computer information and diagnose problems, and then click Network Diagnostics in the list on the left.
 
3. When you click Scan your system, Network Diagnostics gathers configuration information and performs automated troubleshooting of the network connection.
 
4. When the process is completed, look for any items that are marked "FAILED" in red, expand those categories, and then view the additional details about what the testing showed.
 
You can either use that information to resolve the issue or you can provide the information to a network support professional for help. If you compare the tests that failed with the documentation in the Manual Troubleshooting section later in this article, you may be able to determine the source of the issue. To interpret the results for TCP/IP, expand the Network Adapters section of the results, and then expand the network adapter that failed the testing. 

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#5 AngryHan

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Posted 04 November 2014 - 04:51 PM

Well the diagnostics tool said that the device or resource (www.microsoft.com) is not responding. Which is pretty much what I expected since port 80 is blocked.

#6 dc3

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Posted 05 November 2014 - 10:33 AM

Try reseting the TCP/IP.
 
Go to Start> Run and type in cmd and press Enter.
 
Click on the Start orb, then type cmd in the Search programs and files box.
 
cmd will appear under [b]Programs, right click on cmd and choose Run as administrator.
 
A screen similar to the one below will open.
 
Screenshot2.jpg
 
Copy and paste the following command in the Elevated Command Prompt.
 
[b]netsh int ip reset c:\resetlog.txt and then press Enter.
                                                                 
Reboot the computer.

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#7 mwieting

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Posted 06 November 2014 - 04:20 PM

Did you try just manually openeing the ports VIA Windows firewall?



#8 AngryHan

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Posted 16 November 2014 - 12:11 PM

Did you try just manually openeing the ports VIA Windows firewall?

How do you do that?

 

Resetting tcp/ip didn't work






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