This access can be through a cable,DSL, ordial-upconnection.
All internet-connected devices run each request through an ISP to accessserverswhere they can view web pages and download files.
The servers provide these files through their ISP.

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Examples of ISPs include AT&T, Comcast/Xfinity, Verizon, Cox, and NetZero.
These ISPs may be wired directly to a home or business or beamed wirelessly using satellite or other technology.
What Does an ISP Do?
Most homes and businesses have a equipment that connects to the internet.
All this is done quicklyusually in seconds.
The same concept applies when sending and downloading other files such as videos, images, and documents.
Anything you download online is transferred through an ISP.
Is the ISP Experiencing internet Issues or Am I?
When it’s possible for you to’t open a website, try a different one.
If other websites display properly in the surfing app, your system and your ISP aren’t having issues.
The only thing you’ve got the option to do is wait for them to resolve it.
If you might’t replicate the problem on those devices, then the issue is with the desktop computer.
If the desktop computer is unable to load any of the websites,restart the computer.
If that doesn’t fix it,change the DNS server parameters.
However, if none of the devices can fire up the website,restart the router or modem.
This usually fixes data pipe problems.
If the problem persists, contact your ISP.
It’s possible the ISP is having problems, or it disconnected your internet access for another reason.
This hides your traffic from your ISP.
More Information on ISPs
Aninternet speed testshows the speed you get from your ISP.
If this speed differs from what you pay for, contact your ISP and share the results.
What is my ISP?is a website that displays the internet service provider you use.
FAQ
ISPs can see the URLs and content on the websites you visit.
An ISP can also see where you are downloading from and the size of the files you download.
Use the ipconfig commandin Windows Command Prompt.
Then, locate the DNS Servers line to find the IP addresses of the DNS servers.