> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.safesurfer.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Why does Safe Surfer for Windows not work when using a SIM card (mobile broadband) connection on my laptop?

Some laptops (especially in the business market) feature a 4G/5G mobile broadband modem. This is very similar to the technology used to provide a cellular connection for smartphones, along with some tablets. Due to how Windows works, Safe Surfer unfortunately does not support filtering when connecting to the Internet over a mobile broadband modem. In [app version 1.2.0](https://helpdesk.safesurfer.io/en-nz/article/safe-surfer-windows-app-changelog-1tibqnf/#1-version-120-released-2-december-2024), when protection is installed inside the app, we disable mobile broadband network adapters by default.

| Safe Surfer fully supports laptops connecting to the mobile hotspot of a smartphone or tablet. For example, you can share a mobile data connection to a Windows laptop by turning on the mobile hotspot feature of your smartphone or tablet.