So...you are saying that in high noise conditions the KN-100 will blast out
enough power/traffic to take out the whole network?
Could you have been any luckier to find that customer 10 miles from your AP
with a spectrum analyzer? Was that just a guess or do you have an UBER
DUPER analyzer there? I'd like to get one of those babies!
-bob
----- Original Message -----
From: "Caleb Carroll" <karlnet@pathcom.ca>
To: <karlnet@WISPNotes.com>
Cc: <support@karlnet.com>
Sent: Thursday, July 08, 2004 4:12 PM
Subject: [Karlnet] CRITICAL problem w/ Karlnet firmware?
About 2 months ago (when we first upgraded our customer base to firmware
v4.44-02) we had a problem at one of our base stations (KN-200) where we
lost the ability to communicate with any of our customers (KN-100's &
RG-1100's). After our technicians spent 4 frantic hours of trying to
determine what the problem was, I decided to investigate the problem myself.
Our technicians could see what looked like a CW on their spectrum analyzer.
I spent the next 2 hours driving around trying to pinpoint where the signal
was coming from (we assumed that it was something very nearby). I finally
found the source of the interference... It was from 10 miles away and ... It
was one of our customers! No one was home at the time so we disconnected
the antenna and suddenly all of the other customers came back online.
Later on, we returned to this customers house and made the following notes
PRIOR to turning off the customer's KN-100:
1) the same signal was still being transmitted from the KN-100.
2) we could use configurator to login to the KN-100.
3) because the profile of the spectrum use on the spectrum analyzer looked
similar to what you would see if you used the "Antenna Alignment, Full
Speed" function, we decided to enter 0 seconds to run the test (0=Stop).
the signal did not stop.
4) the customer owned a multi-handset 2.4GHz phone system with 4 phones.
5) the customer had a 2.4GHz Linksys router sitting on top of the KN-100
(channel overlap was 14MHz, KN-100 on ch3 and Linksys on ch6 - of course, we
didn't install it).
TODAY, WE HAD A REPEAT OF THIS INCIDENT.
Notes from today:
1) the customer had an RG-1100
2) we could login with configurator (we saved the config file this time).
3) the customer owns a 2.4GHz telephone.
I'm going to send the configuration file to Karlnet and I'm going to post an
.mpg file of the spectrum analyzer output later on today.
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