No, this has no effect on the use of your range extender. Sitecom Cloud Security is software that is active in your router (or modem router), and via your router it protects all the devices (PC, laptop, smartphone, tablet, etc.) in your network. This also applies to the range extender you connect to it. All devices you then connect to the range extender are also automatically protected by Sitecom Cloud Security.

Click here for more information about Sitecom Cloud Security.