Restore to OEM Netgear WAX202

I was trying to restore back to oem firmware from netgear thru web ui and getting this warning message.
Should I proceed with the Force upgrade? TIA

Firmware is from here.

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Thanks. But now stuck in here. Please advise.

You disable the Windows firewall?

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And what kind of network interface is net6?

OpenWrt is not meant to flash netgear firmware !
Yes the solution is nmrpflash (@frollic ) it works well, and yes (@zinm ) don't forget about the firewall.
On your pic, you launched nmrpflash without options ... have you read the documentation yet ?
Take care about npcap, version 1.6 works but I had issues with version 1.7.
Last advice : documentation says to start router THAN launch nmrpflash. My experience is that some devices need to start router first, THAN launch nmrpflash. Try both methods.

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No. I'll do that. Thank you.

Ethernet network

Thank you. I'll try that.
This is the command. Is it supposed to be chk file instead of img?
nmrpflash -i net6 -f WAX202_Firmware_V1.0.5.1.img

I was following the guide from ddwrt.
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399

Yes I remember that some Netgear firmware have chk extension. But nrmpflash doesn't care, you can rename the file like you want. Read and use official nrmpflash doc.