Query failed: connection to localhost:9312 failed (errno=111, msg=Connection refused). Application (widget or regular) that tests WiFi bandwidth - Mac Software Discussions on AppleInsider Forums Toggle navigation All Forums Recent Posts Sign In Application (widget or regular) that tests WiFi bandwidth sinical Posted: November 16, 2008 3:05PM in Mac Software edited January 2014 Hey, I'm wondering if anyone has a recommendation for an app to accurately test WiFi bandwidth. My MBP seems fine internet-wise, but internal file transfers seem to take longer than expected, so I'd like to test. Any ideas? Thanks in advance! Sign In or Register to comment.