MX firmware issues on "brand new" MXs

RaphaelL
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Kind of a big deal

MX firmware issues on "brand new" MXs

Hi ,

 


I'm facing a weird situation 100% caused by bad inventory management on our end. We bought thousands of MX68 couple years ago , stocked them in a warehouse and slowly deploying them. We are now at a stage that some MXs have NEVER been deployed after couple years and obviously are running an old 2018 firmware.

 

That old version ( 14.xx ) CANNOT upgrade to 19.X or 18.X without going to 16.X. If you simply upgrade from 14.XX to 19.XX it will reboot in loop and fail the upgrade every time ( without letting you know that the upgrade cannot complete 💔 ).

 

Opened a case , support suggested creating a dummy network with version 16.16 and doing that firmware upgrade process : 

14.34 -> 16.16 -> 18.107.5 -> 19.1.9

 

You cannot add more than 1 MX per network and I have hundreds to upgrade. We don't know the firmware on the boxes so, we can't really take a chance and ship a MX to a site and expect ZTP not to fail.

 

If only the dashboard could check the firmware version and do that step upgrade process by itself 😉

 

 

I don't see any easy solution. Every option is time consuming.

4 Replies 4
alemabrahao
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Kind of a big deal


@RaphaelL wrote:

Hi ,

 


I'm facing a weird situation 100% caused by bad inventory management on our end. We bought thousands of MX68 couple years ago , stocked them in a warehouse and slowly deploying them. We are now at a stage that some MXs have NEVER been deployed after couple years and obviously are running an old 2018 firmware.

 

That old version ( 14.xx ) CANNOT upgrade to 19.X or 18.X without going to 16.X. If you simply upgrade from 14.XX to 19.XX it will reboot in loop and fail the upgrade every time ( without letting you know that the upgrade cannot complete 💔 ).

 

Opened a case , support suggested creating a dummy network with version 16.16 and doing that firmware upgrade process : 

14.34 -> 16.16 -> 18.107.5 -> 19.1.9

 

You cannot add more than 1 MX per network and I have hundreds to upgrade. We don't know the firmware on the boxes so, we can't really take a chance and ship a MX to a site and expect ZTP not to fail.

 

If only the dashboard could check the firmware version and do that step upgrade process by itself 😉

 

 

I don't see any easy solution. Every option is time consuming.


To be honest, I don't see an easy solution for your situation.

What I would do in your position would be:

Create a dummy network with firmware 16.16 (which I don't think is possible).

Add one MX at a time, upgrade it through the steps.

Then move it to production.

I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.

Please, if this post was useful, leave your kudos and mark it as solved.
Ryan_Miles
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One thought would be use API or bulk creation tool/csv upload to bring in all the MXs and place them into their individual networks. CSV could be as simple as list of serials and generic network names (ex. 1, 2, 3, etc).

 

Create templates for each of the firmware versions. You'd need Support to help set those old versions. Then bind all the networks to the first template to have them upgrade. Once done rebind to next firmware level template. Etc.

 

Example, three templates set to 3 different firmware versions. Support would need to set the older versions as those are no longer public facing/selectable.

 

Screenshot 2025-09-26 at 08.56.19.png

 

Org firmware view with example networks 1, 2, 3 bound to each template.

 

Screenshot 2025-09-26 at 08.59.35.png

 

My thought is bind all networks to template v.16 let them all upgrade. Once finished rebind to template v.18. Once finished bind to template v.19.

RaphaelL
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Kind of a big deal

Exactly , at the moment this is our plan.

It's painful , but I don't think there is a short term solution for that.

Brash
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Kind of a big deal

A bit of a painful situation.

 

I had the same thought as @Ryan_Miles - using the API to create temp networks to assign the MX's too will save a bunch of time.

 

One other thing is you may want to setup a different org to do it in? I'm not sure how many networks an organization can handle before it starts grinding in the dashboard, and you probably don't want to impact the management of your prod networks.

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