Fiddler not showing captured traffic on windows 7

Solution 1:

I had the same issue today. It's possible that you've enabled filters at some point and the new requests are not matching them.

• Help -> Troubleshoot Filters

This will show any filtered out requests in a strikethrough

• On the right pane, click the 'Filters' tab and either uncheck Use Filters or modify the filter appropriately.

Solution 2:

Check that you not turned on some filtering options that Fiddler has. First check filters by processes. It located in Fiddler’s status bar (the second indicator). It should have All Processes value. Other possible options are Web Browsers, Non-browsers and Hide All. Second check Filters tab (on the right side of the main window of Fiddler). Uncheck checkbox Use Filters. Hope this will help.