Hi,
Based on the information you provided, the first two issues that took a long time to restart the computer and did not automatically reconnect to wifi were most likely caused by third-party wifi usb drive.
Since our forum does not have an experimental environment or relevant information about third-party products, it is difficult to understand how D-link
works. It is recommended that you contact the vendor of third-party product.
>>It
is also strange that , if unplug the network cable , the wifi can be connected again.Regarding this issue, it is actually
due to operating systems tend to prefer wired over wireless connections due to bandwidth.
If you have a wireless NIC and it can establish a connection to a SSID, it is dormant while your wired connection is detected.
Once the wired connection is broken, the wireless NIC may automatically attempt to connect, often with a new IP address.
Hope this can help you, if you have anything unclear, please let me know.
Have a nice day!
Allan
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