Basically error 12029 is an HTTP protocol error message that is telling you your web browser could not connect to the web server that you requested. This problem can occur anytime your browser requests a connection to a specific web page. The connection request occurs either when you type a URL into the browser’s address window or when you click on a link on a web page that goes to a different website. The error is shown below.
Can this Error be caused by a Virus, Trojan or some other form of Malware?
While it is possible that a virus, Trojan or some other form of malware could cause this error, it isn’t very likely. Since this is basically a connection, addressing or routing problem, simple configuration or actual physical connectivity problems are much likely causes. However, scanning the computer will determine if there are viruses present.
Possible Causes
There are several possible causes for this error such as:
- The server may actually not be available
- TCP/IP address configuration errors
- DNS server error
- Firewall blocking
How to Fix a 12029 Error
Let’s look at each of the possible causes individually since they each have a different solution.
The server may actually not be available
The web server may not be available because it is down or has exceed the maximum number of simultaneous connections or bandwidth that it is allowed to have because web hosting companies restrict both bandwidth usage and the number of connections to a specific website.
To test this, try to connect to another website using the same application or web browser that got the error message. If you can contact another web site, then the web server is unavailable. All you can do is wait a little and try to access the first web site again
TCP/IP Address Configuration Error
The first thing you need to do is check to see if you have an IP address.
Open a command window by selecting Start->Run and they type cmd in the box. A command window will open
At the prompt, type ipconfig /all. You should get results similar to what is shown below
Make sure you have addresses in the IP address, DHCP and DNS server slots. If you do than the problem is not being caused by a bad IP address.
If you do not, first type ipconfig /release and then ipconfig /renew to get a new address.
If you do not get an IP address and you are connected to a wireless router in your house, reboot the router by turning it off and then back on again.
If you do not get an address and you are connected directly to your ISP, reboot your modem by turning it off, waiting 30 seconds and then turning it back on again. If rebooting doesn’t solve the problem, call their help desk and report the problem. They will help you fix it
DNS server error
Domain Name Servers (DNS) have only one job and that is to translate a URL like Microsoft.com into an IP address so your computer can talk to the web server.
Open a command window by selecting Start->Run and they type cmd in the box. A command window will open
Type nslookup {domain you are trying to reach}. Examples of domain names are microsoft.com, utube.com, whitehouse.gov, etc.
The picture below shows the results when I typed nslookup support.microsoft.com
If you get an answer then the DNS server is working correctly
If you do not, then try looking up another website URL using the nslookup command
It that doesn’t work, first type ipconfig /release and then ipconfig /renew to get a new address and try both lookups again
If it still doesn’t work, call your ISP’s help desk and report the problem
Firewall blocking
Your windows firewall may be blocking the application you are using to connect to the web server.
Select Start->Control Panel and then click on the Windows Firewall icon
When the window opens click on the Exceptions tab as show below
If the program you are having problems with isn’t listed as an exception, add it which should fix the problem.
Recommendation
One of the fixes above should have solved the problem. If none of them worked, and you have an IP address and your DNS server is working, I suggest you do the following:
- Run a complete virus and malware scan of your computer
- Run a good registry cleaner to repair any corrupt or erroneous entries
- Reboot the computer
Everything should work now.
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