Timeouts after restarting or upgrading

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  • Updated 2 years ago
I've been having many issues with AP's not coming back online after a reboot or upgrade. They simply timeout in HMOL, and cannot be pinged on the local LAN. Devices need to be completely powered down and back up. Any thoughts on this?
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Jeremy Stewart

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Posted 2 years ago

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Mike Kouri, Official Rep

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Jeremy,
How are these devices provisioned for their management IP addresses? Are they statically-assigned, or do the APs get their addresses via DHCP? I am trying to figure out how you determine their IPs when you say you cannot ping them from the local LAN. Perhaps they are failing to get a new IP address?
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Jeremy Stewart

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They are using DHCP to get their addresses. The problem is random across 99 devices spanned across 18 locations. Failure rate is about 30%.
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Mike Kouri, Official Rep

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Hmmm. You didn't say what models of access points or versions of HiveOS, so I'm limited in what advise I can give based on this thread. Obvious suggestions are to ensure you are latest recommended release for your hardware (probably HiveOS version 6.5r4), and that your DHCP server is seeing and responding to the boot requests from the access points. 

Do you have a single centralized DHCP server or do you have one for each of your locations/facilities? 
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Jeremy Stewart

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Sorry.
They are all AP121's mostly with HiveOS 6.5r3 Honolulu.2530 (Though this has happened with previous firmware).
Some sites use DHCP relay to a central server, some don't. The lease is still active for these devices, so it should just be picking up where it left off. No conflict since nothing else pings at the address. Unfortunately, i'm too far from the sites in question to do a serial connection.
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Crowdie, Champ

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I would strongly recommend that you upgrade your AP121 access points to 6.5r4 - you may have to reboot them before doing the upgrade to free up memory.  Now I am not a big fan of upgrading for the sake of upgrading but we had a large number of performance and stability issues with AP121 access points from 6.4r1 to 6.5r3 across a number of sites.  Upgrading to 6.5r4 has resolved these issues.