Julien wrote Thanks for your advice. I can't find the last firmware v2.1.12, do you have a direct link to download it? https://static.tp-link.com/2018/201803/20180307/WBS210(UN)_v2.0_20180202.zip

Welcome to the No Man's Land of IPv6 networking. If you want to block IPv6, you have to specify IPv6 addresses in blacklists, too. Obviously your network still allows IPv6 link layer addresses even...

Sprig wrote Is there some way to be able to see the MAC table on the SG108e? No. Only more expensive switches such as the T1/T2/T3 series have a function to lookup MAC address tables.

zillah wrote Second question can i change default password to something I want ?? Sure. What about reading the fine manual? Page 20 explains how to change user properties:...

Try to set one in "Auto" and the other in "Force" mode, then restart them.

No. I'm referring to the "Save Config" function, which saves the config. "Apply" does apply changes, but does not save them in the flash.