My name is***** am sorry to hear that you have this issue, I look forward to assisting you today with your question and providing the best answer possible.
Please save this page to favorites( ctrl + d) so that you can reconnect in case you get disconnected
I would like to collect few more information regarding issue, it would be helpful if you answer
1: "Printer frequently disconnects from all computers at same time" Is this a correct statement?
2: What's the printer model?
3: How's it connected? (Lan / USB / Wireless)
4: Have recently upgraded printer firmware or made any changes which you think the issue had stared after that?
Didn't find you back. Hope you are doing good.
Just checking whether you are still waiting for answer