Hi all, Noob here, but not new to the product. Specs: Early 2015 13" MBA macOS 10.12.5 I have started having issues with the external display plugged directly into my MBA (it looses connection, then reconnects) and USB hubs (connections lost, but don't come back). Plugging mice and keyboards directly into the MBA work, and there are no issues with the laptop display. I tried PRAM and SMC resets with no improvement. Any other suggestions?