This is most likely an issue with IE Security.


Please add ivrnet.com  to your safe sites within IE Security Settings.


Follow these steps - 


Open up your Settings within your browser - most have it on the top right hand corner of your screen 



Next - from the drop down listing choose - Internet Options


Then on this pop up screen - choose Security, Trusted Sites and then click Sites as shown below



Enter ivrnet.com as a trusted site - and click ADD

Then click Close


Try logging in again and the issue should be resolved.