RBR40 2.6.1.38 firmware manual upload | 400 Bad Request Error

[Talk2Mike]

My Orbi RBR40 is already on 2.6.1.36 but I see 2.6.1.38 is available on the Netgear support pages, even though not offered in the automatic update page in the router.

If I try to perform a manual update of the RBS-V2.6.1.38.img I get the message "400 Bad Request" a few seconds after the upload starts.

I tried different browsers on both a Mac and PC but always the same message. Rebooting the Orbi made no difference.

[Talk2Mike · Accepted solution]

Found the error. I was trying to load the RBS40 firmware not the RBK40 firmware. In fact i already have the latest RBK40 firmware!

[FURRYe38]

Try Firefox broswer?

You might factory reset the RBS and RBR and then try to upload the FW files. RBS need to be updated first before the RBR. 

[Talk2Mike]

Using Firefox has the same response as using all the other browsers I tried. The RBW30 is already on the current released firmware and the RBK40 had the version 2.6.1.36 firmware installed manually without this error.

I am loathed to reset unless a simpler solution can be found. Maybe this is a bug of V2.6.1.36?

[vajim]

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@Talk2Mike wrote:

Using Firefox has the same response as using all the other browsers I tried. The RBW30 is already on the current released firmware and the RBK40 had the version 2.6.1.36 firmware installed manually without this error.

I am loathed to reset unless a simpler solution can be found. Maybe this is a bug of V2.6.1.36?

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A bug in a Netgear firmware, it can't be.   

[FURRYe38]

Be sure you are using the right RBR FW file. 

Try a reset.

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@Talk2Mike wrote:

Using Firefox has the same response as using all the other browsers I tried. The RBW30 is already on the current released firmware and the RBK40 had the version 2.6.1.36 firmware installed manually without this error.

I am loathed to reset unless a simpler solution can be found. Maybe this is a bug of V2.6.1.36?

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[vajim]

right?

[Talk2Mike · Accepted solution]

Found the error. I was trying to load the RBS40 firmware not the RBK40 firmware. In fact i already have the latest RBK40 firmware!