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Aziz2019 Author

Level 1

5 points

Error 2005f

My MacBook is showing error 2005f when l tried to reinstall the macos

Posted on Mar 10, 2023 10:03 AM

Best reply

Grant Bennet-Alder

Level 10

127,759 points

Posted on Mar 10, 2023 10:28 AM

In Internet Recovery, these low negative thousands error messages indicate that your provided Wi-Fi Network is inadequate in some fashion, and cannot be used (for this purpose) in its current state.

Common problems include:

Hidden Network-name

required use of a proxy server to get Internet access

required use of a login page to get Internet access

Use of a login server or certificate to get Internet access

Use of PPPoE in the Mac to get Internet access (typically only applies to DSL)

Use of Fixed IP address rather than good old DHCP

Variance of the time by more than five minutes

Failure of Router to provide workable DNS server addresses, or providing 0.0.0.0 [may produce -2002f]

If you have an Ethernet port, you may in some cases be able to move your Mac close to the Router and connect to the Router using Ethernet.

The higher the number, the more obscure the problem.

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Error 2005f

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