Thanks Eleanor, you are great and providing me with the logs was really helpful. I would like to apologize for the inconvenience which this caused to you.
From the logs which I am seeing, Fiddler is having trouble getting the proxy server settings for the 'OSX Default' network connection.
I have two questions:
Is this your primary Internet connection?
What are the proxy server settings on the 'OSX Default' connection?
You can check you settings from System Preferences / Network, select the 'OSX Default' connection, click the Advanced... button and go to the Proxies tab.
If you are using the Auto Proxy Discovery or the Automatic Proxy Configuration options, they are still not supported for Mac and Linux.
If you would like, you could vote for this feature in our feedback portal
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items