Why do I repeatedly have this "Invalid URL" problem?

For some reason, and this happens quite often, when I search in the address bar in Chrome, no matter what I put in, I get the "Invalid URL" page.

Other times, I will get the "Untrusted Connection" page or the red "Warning!" page that tells me that I don't want to be going to this site (please see attached photo) .

It happens usually only with major sites like Yahoo Mail, Google Search and LinkedIn.

Also, it happens across all my browsers...FireFox, Chrome and IE.

I cannot for the life of me figure out what it is but oddly it happens on my Ipad too, when using Wifi in my apt.

Could my wireless router be doing this?

Any help/ideas is greatly appreciated.

 

I would check the settings on your router. It sounds like the DNS entries it's giving to your clients are messed up.

 

What should I be looking for exactly?

 

just to check, is your clock keeping time on your computer.
my cmos battery has died on one of mine and i get the untrusted site but mine just says untrusted not what you are getting in your picture but i use firefox not chrome.