I have a thunderbolt to ethernet cable on a MacBookPro Retina on Lion.
Sometimes the thunderbolt to ethernet connection does not work. It seems to occur when I switch network locations (e.g., I move from my home network to my work network). Restarting the computer fixes the problem, however, I don't want to have to restart my computer.
How can I force thunderbolt to ethernet to connect without restarting the computer?
Under network settings, there is a red dot and not connected on "Thund...thernet". It further says:
Status: Cable Unplugged Either the cable for Thunderbolt Ethernet is not plugged in or the device at the other end is not responding.
Under system information - thunderbolt it states
Thunderbolt to Gigabit Ethernet Adapter: Vendor Name: Apple, Inc. Device Name: Thunderbolt to Gigabit Ethernet Adapter Vendor ID: 0x1 Device ID: 0x8003 Device Revision: 0x1 Route String: 3 Firmware Version: 5.5 Port: Status: Connected Link Status: 2 Port Micro Firmware Version: 0.0.8
Under Network - Thunderbolt Ethernet it states:
Thunderbolt Ethernet: Type: Ethernet Hardware: Ethernet BSD Device Name: en1 IPv4: Configuration Method: DHCP IPv6: Configuration Method: Automatic Proxies: Exceptions List: *.local, 169.254/16 FTP Passive Mode: Yes Service Order: 0