MacBook Pro M5 Won’t Join Wi-Fi? Start Here

The MacBook Pro M5 Pro should connect to normal WPA2 and WPA3 networks. Start by forgetting and rejoining the network, then test a phone hotspot: if the hotspot works, fix the original router; if every network fails, update macOS and test the Mac in Safe Mode before contacting Apple.

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Do not erase the Mac, delete system configuration files, or download third-party Wi-Fi drivers as a first response. Those steps can create a second problem without identifying whether the fault is in the Mac or the network.

The first fixes for a network that will not join

First turn Wi-Fi off and back on from Control Center, then restart the Mac. If it still rejects the network or repeatedly asks for the password, remove the saved network credentials:

1. Open Apple menu > System Settings > Wi-Fi.
2. Click Details next to the affected network.
3. Click Forget This Network.
4. Select the network again and enter its case-sensitive password.

These are Apple’s documented steps for resetting a saved Wi-Fi network. Forgetting the network is preferable to deleting files from /Library/Preferences/SystemConfiguration, an old troubleshooting method that is unnecessarily broad on a new Mac.

If the router admits devices through a MAC-address allowlist, the Mac’s private address may be rejected. On macOS Sequoia 15 or later, open System Settings > Wi-Fi > Details > Private Wi-Fi Address and choose Fixed. Use Off only when the administrator specifically requires the Mac’s hardware address; disabling it reduces privacy. Apple explains the Fixed, Rotating, and Off modes in its private Wi-Fi address documentation.

For company or university Wi-Fi using 802.1X, certificates, device enrollment, WPA Enterprise, or a configuration profile, the network administrator must supply the correct profile. A personal-router reset cannot repair an expired organizational certificate.

What a connected Wi-Fi icon does not prove

A connected Wi-Fi icon only confirms that the Mac has joined the access point. It does not prove that the router has internet access.

Check another device on the same network first. If that device also fails, restart the modem and router and check for an ISP outage. If other devices work, restart the Mac and renew its address:

1. Open System Settings > Network.
2. Select Wi-Fi, then click Details.
3. Open TCP/IP.
4. Click Renew DHCP Lease, then OK.

Also open System Settings > General > Date & Time and enable automatic time. An incorrect clock can make secure websites and sign-in services fail even though Wi-Fi is connected.

Temporarily pause any VPN, third-party firewall, antivirus network filter, parental-control utility, or content blocker. Apple confirms that software interacting with network traffic can prevent both internet and local-network connections. Search System Settings for VPN, profile, firewall, and filter if the responsible software is not obvious; on an employer-managed Mac, ask the administrator before removing anything. See Apple’s network-filter and VPN guidance for the affected software categories.

For a built-in report, hold Option while clicking the Wi-Fi icon in the menu bar and select Open Wireless Diagnostics. Apple also recommends checking the Wi-Fi menu for Wi-Fi Recommendations. These tools are most useful after attempting to join the failing network, not while connected to an unrelated hotspot. Apple’s broader Mac Wi-Fi troubleshooting sequence covers DHCP renewal, router checks, updates, and Wireless Diagnostics.

A home-only failure points to the router

The M5 Pro model uses Apple’s N1 wireless networking chip and supports Wi-Fi 7 (802.11be), according to the official MacBook Pro specifications. It does not require a Wi-Fi 7 router, but an older router using obsolete security or restricted radio modes can still reject it.

Use these settings on every access point and every band:

Set channel selection to Auto, enable every supported band, enable WMM, and install the latest firmware offered for the exact router model and hardware revision. There is no universal router firmware number: it must come from the router manufacturer or ISP. Apple publishes these exact values in its recommended router settings.

Do not test by disabling Wi-Fi security. An open network creates a real security risk and does not reliably identify which secure setting was incompatible. WPA2 Personal with AES is the acceptable fallback when WPA3 or transitional mode is unavailable.

Hotel, airport, and guest networks add another possibility: the Mac may have joined Wi-Fi but still be waiting for a captive-portal login. Open a new browser window and visit a normal non-sensitive website to trigger the portal. If the login page never appears, ask the venue to clear the device registration or provide its support process.

Every network failing points back to the Mac

Use Ethernet or another working connection to open System Settings > General > Software Update and install the latest non-beta macOS update offered for this Mac. An Ethernet adapter is useful here because it provides both a temporary connection and a clean test of whether only the wireless interface is affected.

Next, test Safe Mode:

1. Shut down the Mac completely.
2. Hold the power/Touch ID button until the startup volumes and Options appear.
3. Select the startup volume.
4. Hold Shift, then click Continue in Safe Mode.

Those are Apple’s Safe Mode steps for Apple silicon. If Wi-Fi works in Safe Mode, the hardware is capable of connecting and a login item, VPN, content filter, or other startup software is the stronger suspect. Restart normally and disable recently added networking software one item at a time.

If Safe Mode also fails on two independent networks, run Apple Diagnostics. Shut down, disconnect accessories except power and permitted input/display devices, hold the power button until Options appears, then hold Command-D until the Mac restarts. Apple Diagnostics may offer an offline run or ask for Ethernet when Wi-Fi is unavailable. Record every reference code shown; Apple’s Diagnostics instructions state that unresolved codes can require service.

What to check before returning the Mac

A return or service appointment is justified when all four conditions are true:

• The Mac fails on at least two independent networks, including a phone hotspot.
• The current macOS update has been installed.
• Wi-Fi still fails in Safe Mode.
• Apple Diagnostics reports a reference code, or Wi-Fi remains unavailable despite diagnostics finding no fault.

Contact Apple even without a diagnostic code if no networks appear in normal mode, Safe Mode, or startup diagnostics. Software diagnostics cannot rule out every intermittent antenna, logic-board, or N1 networking fault.

If the Mac connects to a hotspot but not one particular router, exchanging it is unlikely to solve the underlying router configuration. Conversely, a brand-new Mac that fails everywhere should not be subjected to repeated erases or an unofficial repair before Apple has documented the case.

The 24GB memory configuration is unrelated to Wi-Fi association. Choosing M5 Pro over the regular M5 for Xcode, simulators, local AI tools, and long ownership is a separate performance and memory decision; the M5 MacBook Pro RAM choice guide addresses that trade-off. A defective wireless subsystem is a support issue, not evidence that the M5 Pro chip choice was unjustified.