Might be an IRQ conflict
When i try to go on the internet it keeps saying the communication port is invalid or busy. I tryed everything, but it still says the same thing.its on com port 3 but i dont know how to move it to another port to see if they work. How could i fix this?
This question was answered on September 9, 2002. Much of the information contained herein may have changed since posting.
It sounds like you are having an IRQ conflict Please go into your IRQ settings through the device manager and change your com ports.
(for example if you are on com 3 switch to com 4) Also make sure
you have the right driver for the modem
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Posted by Dan of Mesa Community College on September 9, 2002