How to Find the Hardware Version on Your TP-Link Device
EAP660 HD(EU)_V2.20_1.6.1 Build 20260303
Minimum FW Version for Update: 1.2.0 Build 20240828 Rel. 85483. This firmware upgrade is irreversible. Contact Omada technical support if downgrade is required.

Release Note
Version Info:
1.Minimum FW Version for Update: 1.2.0 Build 20240828 Rel. 85483.
2.This firmware upgrade is irreversible. Contact Omada technical support if downgrade is required.
3.Recommended Omada Controller version 6.1 or above.
4.For downloading of any firmware version, please refer to Omada Download Center.
Enhancements:
1.Enhanced device security.
2.Optimized ACS Mechanism.
3.Optimized synchronization mechanism.
4.Optimized automatic adoption mechanism.
5.Optimized automatic bandwidth selection mechanism.
6.Optimized background scanning mechanism.
New features:
1.Added Support for importing and exporting of configuration files encryption.
2.Added Support for configuration of WPA3 Enterprise on the Standalone page.
3.Added Support for configuration of DNS adoption switch (Remote Adoption) on the Standalone page.
4.Added Support for CLI.
5.Added Support for mandatory verification of strong passwords for accounts.
6.Added Support for radsec in RADIUS authentication.
Bug fixed:
1.Fixed an issue where NAT scenario adoption failed during device management state redirection.
2.Fixed an issue where the mesh APs frequently became the isolated state.
3.Fixed an issue where the ACL configuration might be lost in some scenarios.
4.Fixed an issue where unauthenticated clients might fail the portal authentication.
Notes:
1.This version of firmware is applied to the Omada APP v5.1 or above.