Created on 
    
	
		
		
		10-22-2025
	
		
		01:30 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
  Edited on 
    
	
		
		
		10-22-2025
	
		
		01:32 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
 By  
				
		 Jean-Philippe_P
		
			Jean-Philippe_P
		
		
		
		
		
		
		
		
	
			 
		
| Description | This article describes how to resolve an issue when FortiExtender configuration is lost following a firmware upgrade on FortiGate-50G-DSL. | 
| Scope | FortiExtender, FortiGate. | 
| Solution | When upgrading FortiGate-50G-DSL from FortiOS v7.0.17 to FortiOS v7.4.8, the FortiExtender configuration gets removed from FortiGate. 
 FortiGate-50G-DSL # diagnose debug config-error-log read 
 FortiOS v7.0.17. 
 config extender-controller extender-profile 
 config extender-controller extender 
 After upgrading to FortiOS v7.4.8, the FortiExtender gets removed on FortiGate-50G-DSL. 
 FortiGate-50G-DSL # show extension-controller extender 
 FortiGate-50G-DSL # # show extension-controller extender-profile 
 The issue has been reported in internal Engineering ticket 1196352 and is resolved in FortiOS v7.4.9. 
 Related document: | 
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