

UPDATE 2 (): I am using a USB-C hub through which I connect my mouse, keyboard and display. So it seems to be related to the actual monitor somehow? I have tested it with a Sony 4K TV now (actually with an AVR that is connected to the TV) and it works fine. UPDATE 1 (): I use an external LG 4K monitor. Also, connecting to my company's network via RDP on a Windows PC works as expected. However, I can connect to a local Windows PC just fine even with an external display (no RDP gateway in-between).ģrd-party clients like Jump Desktop or Royal TS do not cause such problems. I also tried Microsoft Remote Desktop Beta (10.6.2, 1874) without success. So it works correctly only if just the integrated display is used. Disconnecting the external display renders RDP fine again. I have the same problem I try to connect via RDP to my company's network (using an RDP gateway), it becomes unusable as soon as I connect an external display to a brand-new MacBook Air.
