yes - we dealt with this a few years ago - several radios were talking to an
old server the company we purchased ran. that subnet was no longer even valid
on our network. i remember googling and finding this solution (referenced
below) to resolve
----- Original Message -----
From: Ridgetop Networks
To: Ubiquiti Users Group
Sent: Friday, January 6, 2017 2:39 PM
Subject: Re: [Ubnt_users] Radios Trying To Contact Decommissioned AC1 Server
You need to SSH into the radios that are sending the SYN packets, and use
mca-provision-list and mca-provision-rm to find and remove the entries for the
old AC1 server.
On Fri, Jan 6, 2017 at 2:35 PM, Tim Densmore <tdensm...@tarpit.cybermesa.com>
wrote:
Hi Folks,
I'm seeing a strange widespread issue on my network so I thought I'd run
it by the group. We had an AC1 server that was decommissioned several
months ago when we moved to AC2. AC2 is up and working fine in a
totally different subnet in a totally different physical location - no
issue with that. However, we have multiple (a couple hundred?) radios
on 5.6.x and even 6.0 that are periodically sending syn packets to TCP
port 9080 on the old server's IP address. I've grepped the config files
on a few of these radios and can't find anything referencing the IP or
host name of the old server. This behavior persists through reboots and
firmware upgrades.
So far, looking at packet captures, I haven't been able to see any
pattern that would indicate that these syn packets are in response to
inbound traffic, but I could be missing something obvious since there's
quite a bit of customer traffic to sift through and aside from a
source/dest IP pair I'm not sure what to look for.
Anyone ever seen a similar issue or know of a phone-home setting I'm
missing?
Thanks,
Tim Densmore
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--
Andrew Kaiser
Ridgetop Networks, LLC
417-543-5513
www.ridgetopnetworks.com
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