Q: WiFi drops when using HDMI (10.10.2)
I submitted a bug report for this issue as I can reproduce it consistently, just wanted to share this if anyone else has this issue. Just lost 2 hours until I found out...
As soon as I connect an external display to my MBP through HDMI (connecting a displayport adapter does not seem to be an issue), my Wifi no longer works.
When an external display is connected through HDMI, when I ifconfig, I see that my machine has been assigned a proper IP and has the correct gateway. Trying to ping with the HDMI connected is impossible, the request almost always times out.
The WiFi icon shows as connected and reports no issues whatsoever.
As soon as I remove the HDMI cable, the WiFi works as expected. I can ping my gateway and access websites properly.
MacBook Pro with Retina display, OS X Yosemite (10.10.2)
Posted on Jan 29, 2015 12:26 AM