An easy way I would check if its your WIFI or a problem with the machine is try to boot into network recovery using your home WIFI.
https://support.apple.com/en-gb/HT204904
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When you see the spinning globe it will give you a list of networks, select your home one and enter the passwords. if you eventually see the recovery screen then your laptop is fine and I would recommend
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When you see the spinning globe it will give you a list of networks, select your home one and enter the passwords. if you eventually see the recovery screen then your laptop is fine and I would recommend a reinstall.
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a reinstall.
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A change in mac address etc shouldn't mean a problem at all at the end of the day its technically just a "new mac" and should connect to your WIFI straight away all I can think is there is some software issue.
An easy way I would check if its your WIFI or a problem with the machine is try to boot into network recovery using your home WIFI.
https://support.apple.com/en-gb/HT204904
When you see the spinning globe it will give you a list of networks, select your home one and enter the passwords. if you eventually see the recovery screen then your laptop is fine and I would recommend
a reinstall.