netgear nighthawk R8500 firmware updating with a MAC/Apple

Use Safari or FireFox or Opera browsers to manually update the FW on the router:

https://kb.netgear.com/23960/How-do-I-manually-update-the-firmware-on-my-NETGEAR-router

Need to download the FW file from NGs support site first:

https://www.netgear.com/support/

Also this router is EoL as well:

https://community.netgear.com/t5/Nighthawk-Wi-Fi-5-AC-Routers/Top-NETGEAR-FAQs-Support-and-End-of-Service/td-p/1881104/jump-to/first-unread-message

So no newer FW versions will be forth coming.

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jacqueshousehol wrote:

nighthawk R8500 cant update firmware, nothing is working im a mac apple user

 

what can I do????

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This is the  most reliable way to go about it.

How do I manually upgrade firmware to my NETGEAR router? | Answer | NETGEAR Support

Remember, the download is a zip file. When you unpack it, do not try to "run" the firmware, especially if it is an "img" file. A lot of baffled Mac users turn up here after making that mistake.

What error are you getting when you try? 
Screensnips and a description of what you're doing, trying, and where its failing helps us to help you. Otherwise we're just throwing out WAG's.