Show pageOld revisionsBacklinksExport to PDFFold/unfold allODT exportBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Problems with MAC randomization ====== <WRAP half info centeralign> This Wiki page isn't complete yet. If you know how to disable MAC randomization for operating systems which are not listed here, please tell us how via <helpdesk@fem.tu-ilmenau.de> so we can improve this wiki page. Thank you for your help! </WRAP> ===== What is the problem? ===== MAC randomization is a new technology used in many mobile devices to prevent you from being tracked by your MAC address when searching for Wi-Fi networks. Hence, the feature contributes to privacy and protection against tracing. A MAC address is randomly determined and used when searching for and connecting to networks. However, in FeM-Net, devices are identified by their MAC address. So, if MAC randomization is activated, the device tries to connect via a MAC address that does not match the one in our database, which is why the connection fails. You can recognize MAC randomization when you see a different MAC address on our [[https://myinfo.fem.tu-ilmenau.de|MyInfo page]] in the FeM_Welcome Wi-Fi than the one in the settings of the affected device, for example. ===== How do I disable that? ===== This varies for each operating system, but there is usually the option of deactivating the feature only for individual Wi-Fi networks, which ensures privacy. ==== Android ==== Android supports MAC randomization from Android 10. This feature is therefore not available on older systems. For deactivation: * Open settings > Network & Internet > Wi-Fi * For our Wi-Fi networks (e.g. „FeM.PSK“ and „FeM.1X“) open the settings by pressing and holding down the respective Wi-Fi network > Modify network * In the advanced options, there should now be a corresponding privacy setting that allows to switch off MAC randomization or set the MAC address type to the phone's original MAC address (“phone MAC”). ==== iOS ==== Apple Support offers a guide for iOS 14: https://support.apple.com/en-us/HT211227 ==== Windows ==== In the Wi-Fi settings (Start menu --> Settings --> network and internet --> Wi-Fi) there is a section called "Random hardware addresses". The switch "Use random hardware addresses" must be deactivated. This should deactivate MAC randomization for Wi-Fi. en/public/femnet/howto/mac-randomization.txt Last modified: 2022/04/13 12:21by nex