How do I force the VPN to stay connected to an American server?

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How do I force the VPN to stay connected to an American server? I telework from home some days, using my home network, and my employer gets concerned when their system shows me connecting from different countries. They thought my account was hacked and they broke through the MFA. We finally figured out it was just me and it looked like I was out of the country because of my VPN. I either need to keep it in the USA or be able to turn it off when I am working. Any ideas?

Thanks