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Khidzir_MN
Staff
Staff
March 2, 2026

Troubleshooting Tip: Solution for error 'TLS protocol gap detected, higher protocol are implicitly disabled!'

  • March 2, 2026
  • 0 replies
  • 93 views
Description This article describes a solution for the error 'TLS protocol gap detected, higher protocol are implicitly disabled!'.
Scope FortiWeb and FortiWeb-VM version 7.6.7 or later, FortiWeb and FortiWeb-VM version 8.0.5 or later.
Solution

When trying to save the configuration for Supported SSL Protocols for the respective Server Pool, an error was prompted.

 

error msg.png


The error occurred due to a gap between the enabled Protocols.

 

Solution:

There should be no gap between the enabled Protocols.

Example of the gap between the enabled Protocols:

 

gap_example_1.png

 

gap_example_2.png

 

gap_example_3.png
Related document:

Supported cipher suites & protocol versions 

Thought Leadership. Security Summit. Thursday, November 12th, PGA National Resort, Palm Beach Gardens, FL.
Thought Leadership. Security Summit. Thursday, October 8th. Disney's Grand Californian Hotel & SPA, Anaheim, CA.