Are you using a browser compatible with ISE? Please check the ISE compatibility guide for supported browser versions.
If you hide the pop-up, how can you click the “do not show again” button. Not very clear.
Please clear the browser cache and try again. In any case, what version of ISE are you using? Please let us know.
When I am using proxy on the browser even after clicking the ""Do not show this again"" this message comes back again after new login.
The same does not happen when i remove the proxy from the browser. Works as expected after removing the proxy.
So how does this functionality work ? Does this gets saved in the browser cache or somewhere in ISE ?
Which client OS and browser vendor are you using? Give some idea how the proxy settings were configured when in place?
The known issue is the prompt coming back if we start ISE services. I do not think it saved to browser cache as it's not prompting when we open the same ISE admin web portal on another browser.