Unix & Linux: ' Cannot find a valid baseurl for repo: base/7/x86_64' on 'yum update all'

Unix & Linux: " Cannot find a valid baseurl for repo: base/7/x86_64" on "yum update all"

The Question: I am using Centos 7.1.1503 (core) as a VM. The host OS is Windows 10. I created
this VM so this is a fresh installation of CentOS. My laptop has a direct
connection to the internet, without a proxy.
When I execute the command yum update all I get with the error
Cannot find a valid baseurl for repo: base/7/x86_64
tried all the below suggestions:
1. executed dhclient.
2. Edited ifcfg-enp0s3 with information, as suggested in https://
baseurl-for-repo-errors-on-centos
If I change the VirtualBox network settings to use "NAT", then I can see that
yum is working without any issues. I can keep this setting, but I will not be
able to access CentOS from my host OS, which is why I had used "Bridge"
networking. When I use "Bridge" I am having this issue.

Solutions: Please watch the whole video to see all solutions, in order of how many people found them helpful

== This solution helped 3 people ==
It was a DNS issue. I kept the NAT setting and removed the BRIDGE settings.
This ensured that my internet connectivity works. Yum also didn't have any
problem. In order to connect from host to the guest, I used Port Forwarding in
the network setting. I got this knowledge from this URL http://

== This solution helped 1 person ==
I fixed this problem by uncommenting all occurrences of baseurl and commenting