【aDesk】5.3.0 version VDC prompts “The QOS function of the firewall is turned on”
Problem Description
5.3.0 upgraded to 5.4.0R2. When upgrading VDC, an error message appears: "The QOS function of the firewall is turned on. The current version no longer supports this function. Please turn it off before upgrading."

Root cause
Versions 5.4.0R2 and above no longer have the QOS function. Before upgrading, you need to check whether the function is disabled.

solution
Disable the QOS function.
Original Link
https://support.sangfor.com.cn/cases/list?product_id=26&type=1&category_id=11241&isOpen=true