Why under the USG FLEX H, my e-commerce site will redirect to login page when switch pages?

Zyxel_Melen

This issue is not related to the firewall, but rather to your network topology. The redirect to the login page is usually because your server logs you out. Most cases are that you use a different IP to access it if you have dual WAN. The firewall has a WAN trunk rule or policy for you to use the dual WAN. In this case, you can set a policy route with a fixed outgoing interface to solve this issue.