I tried changing the nameservers to google with no change after rebuilding back to vanilla centos 7. Again, I ran the statements in the clearos7 script line by line using putty. Everything worked through the 'service webconfig stop' command.When I executed the next line to install only app-accounts, that worked. I then tried to install app-configuration-backup by itself. It failed with the 'Requested Range not Satisfied' error on several modules:

Error downloading packages:
3:traceroute-2.0.22-2.el7.x86_64: [Errno 256] No more mirrors to try.
avahi-libs-0.6.31-17.el7.x86_64: [Errno 256] No more mirrors to try.
GeoIP-1.5.0-11.el7.x86_64: [Errno 256] No more mirrors to try.
1:telnet-0.17-60.el7.x86_64: [Errno 256] No more mirrors to try.
32:bind-utils-9.9.4-38.el7_3.x86_64: [Errno 256] No more mirrors to try.
avahi-0.6.31-17.el7.x86_64: [Errno 256] No more mirrors to try.
32:bind-libs-lite-9.9.4-38.el7_3.x86_64: [Errno 256] No more mirrors to try.
32:bind-libs-9.9.4-38.el7_3.x86_64: [Errno 256] No more mirrors to try.
avahi-autoipd-0.6.31-17.el7.x86_64: [Errno 256] No more mirrors to try.
32:bind-license-9.9.4-38.el7_3.noarch: [Errno 256] No more mirrors to try.
iw-4.3-1.el7.x86_64: [Errno 256] No more mirrors to try.

Each of them tried download1 through 4.clearsdn.com.

I then tried to install only traceroute using: yum --enablerepo=clearos-centos,clearos-centos-updates -y install traceroute

yum tried all four mirrors and failed with the 'Range Not Satisfied' error.

yum -y install traceroute installed traceroute-2.0.19-5.el7.x86_64 instead of traceroute-2.0.22-2.el7.x86_64.

Are some of the dependencies not present in the repos or are the dependent versions not correct.

Not much good info on this error on Google.