The reason for your laptop losing connection to your organization's wireless network and could not reconnect must be due to the wireless network card being turned off.
What is a wireless network card?
In order to access the Internet using a wireless connection while inside the wireless range of a wireless local area network, a wireless network card is used. Generally speaking, a wireless network card is built into a general-purpose laptop and is a device that does not require a network cable to be connected to it. As long as there is a wireless network signal present in the region, the laptop can therefore wirelessly browse the Internet similar to a mobile phone.
To learn more about a wireless network card, use the link given
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