Web app very slow to open

Hello,
I am having trouble opening the web app. From the tool bar it takes just under 2 minutes to open. However I can enter the ip for the server into the browser and the web app opens immediately.

Does anyone have any suggestions on what might be causing this problem?

Thank you.

Update - I noticed I was having other strange problems that should not have been happening with a clean install. So I reinstalled Windows again and the problem has corrected itself. Thanks.