@Kalquaro Thanks for the reply. In the meantime, tplink has already released a beta that fixes the issue for the ER605. So I'm happy.

@Clive_A Thank you for the quick fix. I tested it this morning and confirm it resolves the issue on my end. Now when I connect to my whoami service on VLAN 10 (192.168.10.0/24) from VLAN 1...

@Kalquaro I have the same issue with the ER605v2 2.3.0 firmware. In my case, a rollback to 2.2.6 fails, so I think I'm stuck and can't test if a rollback would fix it. Like you, I discovered this...

Device/Versions: Router: ER605 v2, upgraded from firmware 2.2.6 → 2.3.0 APs: EAP670, upgraded from 1.0.4 → 1.1.1 Controller: OC 200 2.0, 5.15.24.21 Summary of Issue: After upgrading the ER605 to...