Turn off firewalls such as 360. There is a tool on the IE browser. There is an option for pop-up blocker settings. Set it to allow pop-ups or change the address of the bank website. It should be OK after restarting. .
It is also possible that the browser version is too high, resulting in the inability to log in to online banking. Press F12 while opening the browser to open the "Developer Tools" window. Select "Browser Mode" to switch to the old version of IE mode.
If the installation through the above two methods still does not work, it is recommended that you finally try another computer and browser.