My company has a ZD1100 and hasn't upgrade the firmware after the deployment, the firmware is still using 220.127.116.11 build 8.
I would like to upgrade the firmware to the most update version 18.104.22.168.14 and follow the upgrade path. However, when I upgrade to 22.214.171.124.3 and 126.96.36.199.16, I found the built-in hotspot login web page cannot connect again in both version. After downgrade back to 188.8.131.52 build 8, it can connect again. Anyone has idea and how to solve this problem?