Troubleshooting Tip: FortiSwitch not coming online on FortiLAN Cloud with error 'Fail to create socket connection'

[sachitdas_FTNT]

Description	This article describes how to resolve a scenario where FortiSwitch is showing the error 'Fail to create socket connection' and not coming online on FortiLAN Cloud.
Scope	FortiSwitch versions 7.2.x and above, FortiLan Cloud.
Solution	To understand how to provision FortiSwitch on FortiLAN Cloud, see this documentation. This article explains the following errors that prevent FortiSwitch from showing online on FortiLAN Cloud. get system flan-cloud-mgr connection-info Fail to create socket connection When FortiLAN debug is run on the FortiSwitch, the following errors are noticed: diagnose debug application flan-mgr -1 diag debug console timestamp enable diag debug enable FortiSwitch # create_and_conn_sockfd:925: [SID: -1] connect() error 10.34.93.89::443. err=Operation now in progress post_switch_info_pkt:1358: [SID: -1] socket() create error (err=Operation now in progress) post_switch_info_pkt:1465: Exiting ...(rcode =0) __switch_state_advt_enter:90: Device [FS1D24Txxxxx] is not authorized for cloud-management. __do_fsm_restart:70: Entering ... __do_fsm_restart:86: ** RE-STARTING STATE MACHINE (reason =Fail to create socket connection) ** __do_fsm_restart:198: Starting Service, cloud_suggest_delay= 0, rand_interval= 4 __do_fsm_restart:204: flan_cloud user cfg status = 1 __do_fsm_restart:212: Starting Service, Interval= 4 Disable the debugging: diag debug disable diag debug reset Solution: Make sure that auto-network is disabled. config switch auto-network set status disable end Reason: FortiSwitch should be in standalone mode to come online on FortiLAN. Refer to the following article for an explanation of the auto-network functionality: Configuring auto-topology - FortiSwitch OS administration guide.