The stacking status shows 'up/down'. "Model MS410-32" - "version 17.2.1"

[Thiandanai]

I have a issue with stacking Cisco Meraki MS410-32 switches. These switches have two dedicated stacking ports: Stack Port 1 and Stack Port 2.

When both stack ports are used on the MS410-32 switches, the stack status keeps flapping — showing 'UP/Down' in the logs continuously. If I use only one port for stacking, it works normally.

Previously, I already upgraded the firmware to the latest recommended version and replaced the stack cable with a new one, but the issue still persists.

Could you please suggest how to solve this issue?

[Mloraditch]

If you are using an oem cable from Cisco then about the only thing I can think to do would be talk to support. The stack port could be bad on one of the units and need rma.

if you are using a third party cable you can ask support but they may require you to get the official cable before doing anything further.

[Thiandanai]

Thanks for your suggestion. In this case, I’ve already performed an RMA for the cable, but the issue still occurs.

[alemabrahao]

This firmware version has some bugs already confirmed, I believe that for now the best thing to do is to do a rollback and wait for Meraki to fix the bugs.

[Thiandanai]

Oh, are there really bugs in version 17.2.1?

[alemabrahao]

Yup

[Brash]

Probably not the issue but worth checking, have you cabled the stack ports correctly? Stack port 1 on switch 1 connecting to stack port 2 on switch 2 (and vice versa)

[r2kat]

It really sounds like a wrong cable management.

I would also check the connections, they should be similar to this image:

 

[IvanJukic]

Hi @Thiandanai ,

As @Brash mentioned. Double check the correct Stack Cable configuration. Also note the correct orientation of the connector. i.e. Upside down.

"Correct orientation - The black tab on the cable heads should face up"

https://documentation.meraki.com/MS/Stacking/Switch_Stacks#Physical_Switch_Stack_Configuration_Steps

[Thiandanai]

@r2kat @IvanJukic 

Thank you all, guys.  I will emphasize to my team again to check the stack cable connections.

[IvanJukic]

No Problem at all. Let me how you go.