Resolving Networking Issues in Early Tahoe Builds
If you accidentally updated your 2015 iMac to macOS Tahoe and lost Wi-Fi/Ethernet, you are experiencing the lack of 'Modern Wireless' patches for this experimental OS.
Potential Workarounds:
- USB Ethernet: Some generic USB-to-Ethernet adapters use 'Class Driver' networking which might still work in Tahoe without specific patches.
- Wait for OCLP 3.0: The 'greyed out' buttons mean the OCLP app doesn't have the kexts for Tahoe yet. You must wait for a new public release.
- Safe Downgrade: The only 'safe' way back to Sequoia is to boot from a Sequoia USB installer, wipe the drive, and reinstall. You cannot 'downgrade' in place.
Original Question: "Possibly the wrong sub, but a Tahoe question"
I recently picked up a late 2015 iMac for around $3.
I first updated it from El Capitan to Monterey officially through Apple, then used OpenCore Legacy Patcher to go up to Sequoia.
After that, macOS Settings showed another update available, so I just let it run. Turns out it upgraded itself to Tahoe.
Surprisingly, Tahoe actually runs fairly well. Bluetooth works, the keyboard works, and general performance is better than I expected. The only major issue is networking. Wi-Fi will not turn on at all, and Ethernet also doesn’t seem to work properly.
In OpenCore Legacy Patcher it says I have two available patches, one for networking/modem support and another for Intel graphics I think, but the patching buttons are greyed out so I cannot apply them.
I later realised Tahoe is not officially supported by OCLP yet, but since Bluetooth still works and the Wi-Fi/Bluetooth functions are on the same Broadcom card, I’m wondering if there is still some way to get Wi-Fi working.
Does anyone know if there’s a workaround for this, or am I basically stuck until newer OCLP support arrives?
And if there’s no fix, what’s the easiest/safest way to downgrade back to Sequoia?
Thanks 🙏🏼
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