Archer T2U plus system extension Mac Os High Sierra
Hi.
I have just installed the Archer T2U Plus driver, following the steps described on the drivers website. I have plugged in the antenna and rebooted the Mac. The TP-Link icon in the top bar has a greyed out message: "No Wireless NIC Plug In".
If I click on that I get a pop-up which says: "system software from developer TP-Link Technologies Co, Ltd was blocked from loading".
I have opened the System Prefs security and preferences pane again and unlocked the "allow" button, but this makes no difference.
I have tried rebooting and going through all this again, but the Mac is not allowing the TP-Link system extension / plug-in to load. What do I do?
Mac Pro 5,1, High Sierra 10.13.6