What Is Windows Transmit Error Code 1231? Cause Of Windows Transmit Error Code 1231, How To Fix Windows Transmit Error Code 1231?
by Krishika M
Updated Feb 17, 2023
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What Is Windows Transmit Error Code 1231?
The "Transmit Error Code 1231" is an error message that can occur on Windows 7, 8.1, and 10 devices when there is an issue with the device's network connectivity. This error message usually indicates a problem with the device's IP configuration or settings or with the TCP/IP protocol. The TCP/IP protocol is a set of rules that governs how devices communicate over a network. If there is an issue with the TCP/IP protocol, it can cause problems with a device's network connectivity. This can result in the "Transmit Error Code 1231" error message being displayed.
There are several possible causes for this error message. One common cause is a misconfiguration of the device's IP address or network settings. For example, if the device's IP address is set incorrectly or if the subnet mask is configured improperly, it can cause network connectivity issues. Another possible cause is a problem with the network hardware, such as a faulty network adapter or cable. In some cases, the error message may be caused by a virus or malware infection, which can interfere with the device's network connectivity.
Cause Of Windows Transmit Error Code 1231
The "Transmit Error Code 1231" can occur on Windows devices for various reasons. Here are some possible causes of the error message and how to fix them:
In summary, the "Transmit Error Code 1231" can be caused by a variety of factors, including issues with the machine name, network adapter, network discovery settings, or inconsistent TCP/IP. By understanding the possible causes of the error message and following the appropriate steps to fix them, the issue can be resolved and the affected device can be restored to normal network connectivity.
Transmit Error Code 1231
The error message "Transmit Error: code 1231" can occur when attempting to connect to a remote computer in a workgroup or network location. There are two common causes of this error. The first is network connectivity issues, which may prevent communication between the two machines. The second cause is related to the name of the machine, particularly if it uses complicated terminology.
One potential cause of the error is that the machines on the network may not be properly configured to communicate with one another. This could be due to a problem with the network adapter or router, or it may be due to issues with the network settings on the computer itself. In some cases, the issue may be related to the operating system or software configuration.
Another common cause of the error is a naming conflict. This can occur when two machines on the network have similar or identical names. This can lead to confusion and communication errors, particularly if the names are complex or difficult to remember. Renaming the machines to unique, easy-to-remember names can often resolve this issue.
How To Fix Windows Transmit Error Code 1231?
Fix #1: Rename the conflicting machine
One possible cause of the "Transmit Error Code 1231" is the use of lower case letters in the machine name, particularly in Windows 10/11 devices due to a NETBIOS resolution change implemented by Microsoft. To fix this issue, you need to rename your PC to upper-case characters only. Here are the steps to follow for different Windows versions:
For Windows 10/11 devices:
For Windows 7 and 8.1 devices:
By following these steps, you should be able to fix the "Transmit Error Code 1231" caused by the use of lower case letters in the machine name.
Fix #2: Reinstall your network adapter
The second fix for resolving the Transmit Error Code 1231 involves reinstalling the network adapter. This error may occur due to a problem with the network adapter that makes the machine invisible in the local workgroup. To reinstall the network adapter, the user needs to follow a set of instructions.
Firstly, it is recommended that the user is connected to the internet using an ethernet cable to guarantee internet stability and avoid any further issues. After that, the user should launch the Run utility by pressing the Windows + R keys, enter "devmgmt.msc" into the text field, and hit Enter. This will open the Device Manager.
Once inside the Device Manager window, the user should scroll down and check all the installed device drivers. They should then expand the drop-down menu next to Network Adapters. After locating the network adapter causing the issue, the user should right-click on it and select Uninstall. They should confirm their action and wait for the process to complete.
After the network adapter has been uninstalled, the user's internet access will be cut off. If this happens, the user should restart their PC. Once their PC reboots, a more generic network adapter driver will be installed, and the user's internet access will be restored.
This fix should resolve any issues caused by a problem with the network adapter, which may have caused the Transmit Error Code 1231 to appear.
Fix #3: Reset your TCP/IP
The TCP/IP protocol is the foundation of the internet and local networks, and an issue with this protocol can cause the error code 1231 to occur. A reset of the TCP/IP configuration can be the solution to the problem. Here are the steps to reset your TCP/IP:
Launch the Run utility by pressing the Windows + R keys.
Type "cmd" into the text field and press the CTRL + Shift + Enter keys simultaneously to open an elevated Command Prompt.
In the Command Prompt window, type the following commands and press Enter after each one:
ipconfig /flushdns
nbtstat -R
nbtstat -RR
netsh int reset all
netsh int ip reset
netsh winsock reset
Once all the commands are executed properly, repeat the same process for every device connected to the workgroup or homegroup.
Finally, ping the devices again and check if you still receive the Transmit Error Code 1231.
Resetting the TCP/IP configuration should fix the problem if an inconsistent TCP/IP configuration is the cause of the issue. However, it is important to note that resetting the TCP/IP configuration will delete all the network settings and will reset your TCP/IP stack to its default settings.
Fix #4: Enable the Automatic Setup and Network Discovery features
To resolve the Transmit Error Code 1231, you may need to enable the Automatic Setup and Network Discovery features on your PC. If your PC's Network Discovery and Automatic Setup features are disabled, then you may face the Transmit Error Code 1231 issue.
To fix this problem, follow these steps:
Once you have enabled the Network Discovery and Automatic Setup features, you should restart your PC to ensure that the changes are applied properly. After restarting, check if the Transmit Error Code 1231 issue is resolved. If not, you can try other fixes such as resetting your TCP/IP configuration or reinstalling your network adapter driver.
Fix #5: Run a quick malware scan
Malware is a type of malicious software designed to infiltrate a computer system or network with the aim of causing damage or stealing data. It is rare for malware to cause the Transmit Error Code 1231, but it is a possibility. If you suspect that malware is causing the error, it is important to take immediate action to scan and remove any malicious software on your device.
Windows Defender is a built-in antivirus program on Windows 10/11 that can scan and remove malware from your device. To run a malware scan using Windows Defender, follow these steps:
If Windows Defender does not detect any malware, you may want to consider running a scan with a third-party anti-malware program. There are many reputable anti-malware programs available, such as Malwarebytes, Norton, and McAfee. You can download and install one of these programs and perform a scan on your device to check for any malware. Be sure to keep your anti-malware program updated to ensure the best protection against new threats.
What Is Windows Transmit Error Code 1231 - FAQs
Transmit Error Code 1231 is a network error that occurs when there is a problem with the network connection. It can prevent you from accessing the internet, network resources, or other computers on the network
You can try a few different methods to fix Transmit Error Code 1231, such as resetting your TCP/IP, reinstalling your network adapter, enabling network discovery, or running a malware scan. You may need to try multiple methods to find the one that works for you.
You may be getting Transmit Error Code 1231 due to network connectivity issues, a malfunctioning network adapter, an improper TCP/IP configuration, or a problem with the network discovery settings. It can also be caused by malware or viruses on your computer.
You can prevent Transmit Error Code 1231 from happening in the future by keeping your network adapter drivers up to date, regularly running malware scans, and ensuring that your network settings are configured correctly.
Yes, you can fix Transmit Error Code 1231 without technical expertise by following the step-by-step instructions provided in this guide. However, if you are unsure about any of the steps or if the issue persists, you may need to seek the help of a professional IT technician.