Automated Logic (ALC) WebCTRL = controls software for buildings
NOTE: WebCTRL only works in Internet Explorer web browser.
PROBLEM
WebCTRL loads in your browser as a blank white screen, without the typical graphical user interface. This is an Internet Explorer settings problem - it may be a result of a recent IE update.
SOLUTION = open local intranet security settings in Internet Explorer
STEPS
NOTE: WebCTRL only works in Internet Explorer web browser.
PROBLEM
WebCTRL loads in your browser as a blank white screen, without the typical graphical user interface. This is an Internet Explorer settings problem - it may be a result of a recent IE update.
SOLUTION = open local intranet security settings in Internet Explorer
STEPS
1. Click the Internet Explorer “Gear” (upper right corner), then, "Internet options" :
a. 
2. Click “Security” tab, then, “Local Intranet”, then the “Sites” button:
a. 
3. Click the “Advanced” button:
a. 
4. Add the site you need (your WebCTRL IP):
a. 
You may need to disable requiring “HTTPS”:
5. Go to WebCTRL login & images should re-appear.
REFERENCES
all IE settings credit goes to Corey Wilkinson of PSU AE
Payam Delgoshaei for troubleshooting with WebCTRL
Payam Delgoshaei for troubleshooting with WebCTRL