If you’re using a LACP link between the controller/MD and the uplink switch
double check that LACP signaling is correct.
We’ve seen this with at least one switch vendor where the LAG showed up, but
traffic was intermittent.
From: The EDUCAUSE Wireless Issues Community Group Listserv
<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> On Behalf Of Jerry Bucklaew
Sent: Thursday, July 8, 2021 1:02 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: [WIRELESS-LAN] ArubaOS 8.5.0.9 Clients not getting an address
To ALL:
We are experiencing and issue on our aruba os 8.5.0.9 code and I am
wondering if anyone else has seen it. Starting this week we have had
complaints of users not getting an ip address. It seems to be isolated to two
buildings for the most part. On the dhcp server we see the discover and
offer, but never a request. On the controller packet capture we see the same
thing, discover and offer but no request. On a client side packet capture we
see discover but no offer. It seems to be ap related and a reboot of the ap
seems to fix it, sometimes we have to reboot many ap’s as a bunch in the same
area have the issue. For those with netinsight the insight, “no dhcp request
after offer” seems to catch it.
For now it is only affect about 50 people out of 5k so a small number. But
it also seems to be affecting about 50 Ap’s out of 6k, so again a small number.
But we really have not confirmed that it is the ap. We have confirmed that a
client on the same ap will continually have the problem no matter how many
times we reboot him or de-auth him. We have confirmed that many times if we
get him to go to a different ap/location it does seem to clear up.
So again, just wondering if we are the only ones or if someone else has seen
this.
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