VMware NSX-T Data Center 2.x VMware NSX-T Data Center VMware NSX-T
Cause
The issue may occur after NSX-T is upgraded on the ESXi host and the file /etc/vmware/nsxa/host_config_mmode.bin is not emptied causing the ESXi host to be still considered in NSX-T Maintenance Mode.
Resolution
This issue is resolved in NSX-T 2.5.0.
Workaround: As a workaround the following steps can be applied to clear the NSX-T Maintenance Mode status:
1. SSH to the ESXi host.
2. Rename the file /etc/vmware/nsxa/host_config_mmode.bin #mv /etc/vmware/nsxa/host_config_mmode.bin /etc/vmware/nsxa/host_config_mmode.bin.bck
3. Restart the nsx-opsagent service: #/etc/init.d/nsx-opsagent restart
Issue also observed in NSX 4.1.1 ( Same Resolution as above )