adobe photoshop elements 2021

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I both the disc version of adobe photoshop elements 2021but I entered the serial number & the I get a message please connect to the internet & retry, but I am connected. Please help

[Greg_S.]

What OS are you using?  Have you tried turning off your antivirus protection or firewall?

See if any of the other solutions presented here work for you.

You can also contact Elements support. You can start a chat session by clicking on the blue Contact Us button under the Support menu at Adobe.com. Or you can contact Support by telephone using the numbers listed here: https://helpx.adobe.com/contact/phone.html.