Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again.
To fix this please log into InterWorx and disable the repo. You can do this by Server > Software updates > right hand side edit and disable.
Then yum update -y
If that doesn't work, nano /etc/yum.repos.d/epel.repo
Then remove the 's' on https:// to just http:// then enable the epel repo, you can put enabled=1
or click enable on InterWorx.
After use yum update -y
and when you are up-to date, nano the file and then re-add the s.
This works for all repo's.