Recently I experienced an unexpected problem in my Chrome browser. When opening a web page, there would be a delay, then a message that the site couldn't be opened and then after a further pause, the page would open correctly.
After running through all the usual checks (restarting my cable box, router and PC), it appears the problem was caused by a change in the Domain Name Server (DNS) by my internet service provider (Spectrum). So the pauses came when my browser had trouble resolving an internet address on the provider's DNS.
One way to see this is to run the Chrome Connectivity Diagnostics.
I could have called my ISP and enjoyed the usual delays while going over the problem, but it was easier to just switch my PC to a more reliable DNS, in this case Google's.
Simply open the Control Panel, select Network and Sharing Center and then click on Change Adapter Settings. In the window that opens, right-click on the icon that connects your PC with the internet and select Properties. Next, select "Internet Protocol Version 4 (TCP/IPv4)" and again select Properties. In the window that opens, select "Use the following DNS server addresses." Type in Preferred 8.8.8.8 and Alternate 8.8.4.4, then click OK and the problem should be resolved.
Test it by calling up a web address. You can also run the Chrome Connectivity Diagnostics again to verify that the problem is resolved.