Speed up Microsoft Edge with TCP Fast Open (Easy Trick)

Making Microsoft Edge somewhat faster is very easy, it has a functionality called TCP Fast Open. TCP Fast Open is an extension to speed up the opening of successive Transmission Control Protocol (TCP) connections between two endpoints.

It works by setting a crypto cookie on the client if the clients reconnect to the server, the cookie is sent with together at the same time with the SYN packet. If the cookie is successfuly checked by the server, the server responds with data even before the ACK (Acknowledged) packet is received. 

Speed up Microsoft Edge with TCP Fast Open (Easy Trick)

** Microsoft has disabled TCP Fast Open because of firewall problems. If you still can enable this feature update your Windows 10 the to the latest build.
The TCP Fast Open feature is deprecated in the most recent windows 10 update.

  • Open Microsoft Edge
  • Type about:flags in the address bar.

  • Scroll down to Networking
  • Check the “Enable TCP Fast Open” option box

Enable TCP Fast Open - Microsoft Edge

  • Thats it, enjoy!

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