Resolve the “Saving Option Failed IPv4 Only for Server IP Lightspeed” error like a pro. Our Lightspeed Support team is here to help you with your questions and concerns.

Saving Option Failed: IPv4 Only for Server IP Lightspeed

Have you been running into the following error while trying to save a Lightspeed configuration with an IPv6 address for the server IP?

Saving Option Failed: IPv4 Only for Server IP Lightspeed

If the answer is yes, our experts have your back.

According to our experts, the error occurs because Lightspeed does not support Ipv6. Hence the configuration fails to save. This field strictly accepts IPv4 addresses.

Fixing the IPv4 Only Error manually in Lightspeed

To correct this error, we need to edit the Lightspeed configuration file and replace the IPv6 address with an IPv4 address. The configuration file is usually found in the following directory:

/etc/lightspeed/lightspeed.conf

Follow these steps to fix the error:

1. First, open a terminal.
2. Then, go to the directory with the Lightspeed configuration file:

   cd /etc/lightspeed
3. Now, open the configuration file using a text editor.

   For example:

   sudo nano lightspeed.conf
4. Next, find the line that specifies the server IP address in the configuration file.

   server_ip = 2001:0db8:85a3:0000:0000:8a2e:0370:7334
5. Then, change the existing IPv6 address to an IPv4 address.

   For example, modify the line to:

   server_ip = 192.168.1.1
6. After making the change, save the file.
7. Then, restart the Lightspeed service to apply the changes:

   sudo service lightspeed restart

Once Lightspeed has restarted, the error message should no longer appear.

Alternative Method: Via Lightspeed interface

We can also update the server IP directly through the Lightspeed interface:

1. Go to General settings.
2. Then, find the Server IP field.
3. Next, enter the server’s IPv4 address into this field.

This is a user-friendly way to ensure the server IP is correctly set to an IPv4 address without directly editing configuration files.

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Conclusion

In brief, our Support Experts demonstrated how to fix the “Saving Option Failed IPv4 Only for Server IP Lightspeed” error.