Not to sound like a dick but if you have to ask, your chances of successfully fooling your employer are low.
I just mean that technology is very tricky. People here are giving you advice on getting a VPN and as u/y_gingras points out, this may not actually do anything to hide your location.
Honestly, if I was your employer, I can already think of a few ways to catch this which I doubt many of the people who have commented so far are even aware of.
For instance, has your employer installed geolocation software on the computer? Wait, there’s no GPS in my laptop, right? You’re right. There isn’t.
But you have Wifi. And companies like Google map Wifi networks all over the world.
In other words, you know when Google drives those little cars around and gets Street View pictures of most of the streets around the world? They also map all of the Wifi networks they pass by too.
When you click on that little Wifi icon and you see a list of all of the WiFi networks near you, Google creates maps based on these known Wifi networks.
Even if you don’t connect to any of those other Wifi networks, the fact that your computer can see other Wifi networks around it tells Google approximately where you are because they know where those other WiFi networks are.
They can use the signal strength to know you’re closer to this network than that network and you’re getting a really strong signal from another known network, so you must be within 10 meters of this exact spot.
Google sells that data to geolocation tracking firms. Those firms then provide a variety of services to businesses that need to know the exact location of a computing device.
If your employer is one of those businesses, they could easily know your exact location. It could be tracking you in the background and reporting your location to your employer.
Even if they don’t want to pay for a sophisticated system like that, they could always just install a little agent that runs in the background and periodically reports back to the company where the computer is.
So, you try to be all careful and only connect to your employer via VPN to disguise your location but when you were surfing YouTube videos 20 minutes before you used the VPN, your computer called home and told them what ISP you were connected to.
Is this common? No. But you haven’t said who your employer is. If it’s someone like Google or Northrup, yeah, they’re probably tracking where their computers are. If it’s Bob’s Hardware Store, probably not.
BTW, a company I used to work for used to have a tracking feature and they had remote management software installed on all computers that let them monitor what I was installing on the computer and god knows what else.
As soon as they issued me the computer, I wiped the hard drive clean and did a fresh OS install (fortunately they didn’t mess with the bios). I got a phone call a few days later asking what happened to their computer.
LOL