Installing the latest version DYMO LabelWriter software
Ensure you've installed the latest version of the DYMO LabelWriter Software (8.7). You can download it via:
Supported DYMO Printers
DYMO LabelWriter 450
DYMO LabelWriter 450 Turbo
DYMO LabelWriter 450 Twin Turbo
DYMO LabelWriter Wireless
After installing the software, you need to restart your computer, plug in the printer via USB and make sure it’s powered on.
Checking if DYMO is installed correctly
You can check if the DYMO Web Service is running by going to the following web address in your browser: https://127.0.0.1:41951/DYMO/DLS/Printing/Check.
If your web-service is running, you should see a success message like the one below.