MR34 - port bouncing after some time?

smithm_worc
Comes here often

MR34 - port bouncing after some time?

I haven't opened a support case on this...yet....as these older MR34 models are going to be replaced in the coming weeks with MR56 models via eRate.  However, I was curious....has anyone seen an issue where the MR34 will randomly lose connection to the Meraki Cloud Dashboard.

 

When this happens...on the switch it's connected to (HP Procurve), the port goes into basically a port flap up/down state.

 

I 02/08/22 14:59:45 00077 ports: port J6 is now off-line
I 02/08/22 14:59:34 00076 ports: port J6 is now on-line
I 02/08/22 14:59:31 00077 ports: port J6 is now off-line
I 02/08/22 14:59:22 00076 ports: port J6 is now on-line
I 02/08/22 14:59:19 00077 ports: port J6 is now off-line
I 02/08/22 14:59:06 00076 ports: port J6 is now on-line
I 02/08/22 14:59:03 00077 ports: port J6 is now off-line
I 02/08/22 14:58:54 00076 ports: port J6 is now on-line
I 02/08/22 14:58:51 00077 ports: port J6 is now off-line
I 02/08/22 14:58:39 00076 ports: port J6 is now on-line
I 02/08/22 14:58:36 00077 ports: port J6 is now off-line
I 02/08/22 14:58:27 00076 ports: port J6 is now on-line
I 02/08/22 14:58:24 00077 ports: port J6 is now off-line
I 02/08/22 14:58:11 00076 ports: port J6 is now on-line
I 02/08/22 14:58:08 00077 ports: port J6 is now off-line
I 02/08/22 14:57:59 00076 ports: port J6 is now on-line
I 02/08/22 14:57:56 00077 ports: port J6 is now off-line
I 02/08/22 14:57:43 00076 ports: port J6 is now on-line
I 02/08/22 14:57:40 00077 ports: port J6 is now off-line
I 02/08/22 14:57:31 00076 ports: port J6 is now on-line
I 02/08/22 14:57:28 00077 ports: port J6 is now off-line
I 02/08/22 14:57:00 00076 ports: port J6 is now on-line
I 02/08/22 14:56:57 00077 ports: port J6 is now off-line
I 02/08/22 14:56:48 00076 ports: port J6 is now on-line
I 02/08/22 14:56:45 00077 ports: port J6 is now off-line
I 02/08/22 14:56:31 00076 ports: port J6 is now on-line
I 02/08/22 14:56:28 00077 ports: port J6 is now off-line
I 02/08/22 14:56:19 00076 ports: port J6 is now on-line
I 02/08/22 14:56:16 00077 ports: port J6 is now off-line
I 02/08/22 14:56:03 00076 ports: port J6 is now on-line

 

The fix is easy.  We power off the ports PoE...wait about a minute....then power it back on.  Good to go again.  Yet, we've seen this happen with random MR34 units, in different networks, with no real reason for this to be happening.  No traffic increases or major client changes.  I also have yet to see this happen more than once to a single unit.  It's happened to about 25-30 different MR34 units so far.   We have over 2000 APs in our environment.

 

The MR34 APs are running 26.8.2  (our newer MR42/MR56 models 27.7.1).   I plan to upgrade these during an upcoming school shutdown week or at worst this summer.

 

Just curious.

 

 

1 Reply 1
BrandonS
Kind of a big deal

I haven't noticed anything like this particular to MR34.  One organization I manage has over 100 MR34 across 4 networks that have been updated regularly and are at 28.6.2 now.

 

I'm curious to hear back what you find out.  I wonder if it could be POE related?  Have you check POE budget and usage on the switch?  Maybe something to do with "green ethernet/poe/EEE" that might try to put them in a power save mode?

 

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