AP fails every hour with Hearbeat failure message

[mnk23227]

The AP's are connected and functioning. They are updated via the unleashed browser. The AP go down every hour with the message:
AP[8c:fe:74:36:81:90] joins with uptime [90479] s and last disconnected reason [Heartbeat Loss]

The unleashed Web UI shows the switch is disconnected. The switch is on version 
ICX7150-C12 Switch>show version
Copyright (c) 2017 Ruckus Wireless, Inc. All rights reserved.
UNIT 1: compiled on Apr 3 2018 at 15:27:41 labeled as SPS08070b
(25605164 bytes) from Primary SPS08070b.bin
SW: Version 08.0.70bT211

The switch is not able to ping my device (mac) nor can the Mac ping the switch. Therefore TFTP to transfer the image is not working. The Web UI to switch was working but now has stopped.

The switch ip and configuration
ip address 192.168.X.3 255.255.255.0 dynamic
ip default-gateway 192.168.X.1 dynamic

The switch connects to a TPLink router provided by ISP.

ICX7150-C12 Switch>show interfaces brief

Port Link State Dupl Speed Trunk Tag Pvid Pri MAC Name
1/1/1 Down None None None None No 1 0 d4c1.9e87.c64c
1/1/2 Up Forward Full 1G None No 1 0 d4c1.9e87.c64d
1/1/3 Down None None None None No 1 0 d4c1.9e87.c64e
1/1/4 Up Forward Full 1G None No 1 0 d4c1.9e87.c64f
1/1/5 Up Forward Full 100M None No 1 0 d4c1.9e87.c650
1/1/6 Down None None None None No 1 0 d4c1.9e87.c651
1/1/7 Down None None None None No 1 0 d4c1.9e87.c652
1/1/8 Down None None None None No 1 0 d4c1.9e87.c653
1/1/9 Up Forward Full 1G None No 1 0 d4c1.9e87.c654
1/1/10 Down None None None None No 1 0 d4c1.9e87.c655
1/1/11 Down None None None None No 1 0 d4c1.9e87.c656
1/1/12 Down None None None None No 1 0 d4c1.9e87.c657
1/2/1 Down None None None None No 1 0 d4c1.9e87.c659
1/2/2 Up Forward Full 1G None No 1 0 d4c1.9e87.c65a
1/3/1 Down None None None None No 1 0 d4c1.9e87.c65b
1/3/2 Down None None None None No 1 0 d4c1.9e87.c65c
mgmt1 Down None None None None No None 0 d4c1.9e87.c64c

Please help in getting the switch to work and help address the heartbeat issue

[mnk23227]

The problem was about DHCP lease renewals. I checked the detailed system logs, DHCP was renewing leases and changing the IP addresses. The AP had to request to delete the old IP and register new one and thus causing a blip.
After assigning static IP and increasing the DHCP lease duration, the problem is resolved.
The switch update is still an issue. How can I find older version of software?
The switch is running 08.0.70T211 and cannot be registered on unleased web ui which requires the switch to be on 08.09 and higher. I cannot upgrade directly from the current version to the latest version and I cannot find the older firmware packages.

[Imran_ruckus]

Hi @mnk23227 

Greetings!

Thank you for your response and the update.

Yes, assigning a static IP address and increasing the DHCP lease duration should help resolve the heartbeat issue.

Regarding the switch upgrade, your device is currently running an older non-UFI version (08.0.70). The recommended version for Lennar RUCKUS switches is 08.0.95g.

Please follow the upgrade path below to reach the recommended version on your Switch:
08.0.70T >> 08.0.80f >> 08.0.95g

For detailed step by step instructions, please refer to the RUCKUS Lennar Knowledge Base self-help article below:
https://community.ruckuswireless.com/t5/RUCKUS-Lennar-Support-Knowledge/How-to-upgrade-RUCKUS-ICX-71...

Kindly proceed with the upgrade at your convenience, once done it can be added to the Unleashed system, and feel free to reach out if you need any assistance during the process, I’ll be happy to help.

Thank you again for your patience and understanding.

Best regards,
Imran Sanadi
RUCKUS | Lennar Home Community Support

[Imran_ruckus]

Hi @mnk23227 

Greetings!!!

I trust this message finds you well.

I kindly request an update on the status of the issue so that we may proceed further with resolving it.

Thank you.

Best regards,
Imran Sanadi
RUCKUS | Lennar Home Community Support