And if that does fix your problem and it's a DNS issue, here's a fix to use Google's DNS servers on your PC instead of Centurylink's.

" If you're able to access certain sites right now, I have found a fix that'll eliminate the need for using CenturyLinks DNS servers. You'll still have their internet but won't use their DNS servers. Fixed my issues with not being able to access my corporate site. First, go to Control Panel, then Network and Internet, then Network and Sharing Center then on the left side there's a menu. Select Change adapter settings. This is where it gets tricky... If you're using a wired connection you should see something that says Local Area Connection and it should say Connected or something along those lines. If you're using a Wireless connection then you'll see the network id that you're connected to... Right click it. Choose Properties. Once the window comes up select Internet Protocol Version 4 and click Properties. You'll see some information there. What you'll need to do is select Use the following DNS server addresses and then put in 8.8.8.8 and 8.8.4.4. Then select OK and then Close. This will put you using Googles DNS servers which haven't had an issue in a very long long time. Plus, they cache information quicker! Let me know if you're having any issues with this, I can setup a remote session with you and we can get it working."