"Gateway Determination" is the amount of time required to detect what
upstream proxy server should be used. If this is more than a few
milliseconds, chances are good that you have IE Configured to
automatically detect proxy settings (inside Tools / Internet Options /
Connections / LAN Settings) but there is no proxy available, so
Fiddler is forced to do this detection over and over and over.
The simplest fix is to click Tools / Fiddler Options / Connections,
and uncheck the "Chain to upstream proxy" option, then restart
Fiddler. The better fix is to untick the "Autodetect Proxy settings"
inside IE (when Fiddler isn't running) because this will improve IE's
performance even when Fiddler isn't running.
upstream proxy server should be used. If this is more than a few
milliseconds, chances are good that you have IE Configured to
automatically detect proxy settings (inside Tools / Internet Options /
Connections / LAN Settings) but there is no proxy available, so
Fiddler is forced to do this detection over and over and over.
The simplest fix is to click Tools / Fiddler Options / Connections,
and uncheck the "Chain to upstream proxy" option, then restart
Fiddler. The better fix is to untick the "Autodetect Proxy settings"
inside IE (when Fiddler isn't running) because this will improve IE's
performance even when Fiddler isn't running.
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