@CatoFuglestad Hello, Here is a link you can refer to know the security of CPE210: https://www.tp-link.com/en/business-networking/outdoor-radio/cpe210/#specifications From the spec, we can know that...

@marcos75 Hello, What error information did you get when you connect to the range extender's wifi to use wifi calling? May I have a screenshot of the error page? What is the model number of TP-Link...

@afarber Hello, How did you upgrade the firmware？ By wireless or wired connection? You can connect your computer to the range extender via Ethernet cable then use tplinkrepeater.net to access the web...

@Mohsen-1 Hello, Did you mean that you can't connect to the range extender's wifi after configuration or you can't configure it successfully? What is the Error information? May I have a photo of it?...

@Buzbuz1 Hello, Please use different devices to access the setup page. Here is a FAQ you can refer to check the issue: https://www.tp-link.com/en/support/faq/673/ What error information did you get...

@Kaido Hello， Thanks for your reply, we will do some troubleshooting first and try to fix it. 1. Are you able to see the 2.4G wifi network name of your router? 2. Try to change the authentication...