You replaced the kn205 and you are still having this problem........the
kn250 doesn't reboot...but the kn205 does....swap them?
Do you have a lightening protector on the antenna for the KN205? Is it well
grounded? The antenna ports on a lucent card carry some voltage and
shorting it properly or feeding it the right about of power will cause the
card to reset and likely, the kn205 to reboot. We've seen this with
AP-1000 setups on occasion when DC power systems were shared between the AP
and an AMP. Do you have an amp on this?
Grounding is a good place to start looking. We've visited sites that were
the building was literally HOT because of a bad earth ground. Could it be
that your building isn't grounded well enough and the electrical changes
from the storm are generating some current that is getting into the radio,
enough to reboot it?
-Bob
----- Original Message -----
From: <jna@tcpbbs.net>
To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
Sent: Thursday, August 26, 2004 2:23 AM
Subject: [Karlnet] Lightning Issues
>
> Hello,
>
> I am at desperation here. We have a kn205 setup on a 150' building central
> to all our tower locations. This kn205 is a hub to each tower we have as
> well as the backhaul into our NOC. Every single time a storm comes through
> with lightning our kn205 reboots with every single lightning bolt.
Lightning
> is not striking this unit but it is somehow reacting to the strikes even
> some being a whole city away. We actually tried switching the kn205 for a
> new one thinking something was wrong with it. We tried new cards. Karlnet
> sent us a 48v power supply which they thought would fix it but no luck.
DOne
> POE done direct wire. We have had an electrician check wiring and
grounding
> which all panned out OK. The crazy thing is we have the karlnet kn250
> sitting right next to the kn205 plugged into the same power line going
into
> the same UPS and this kn250 does NOT reboot. We also have a computer
plugged
> into the same power line and UPS and this does not reboot during storms.
Its
> driving me bonkers we have had 2 days of lightning and it has literally
> caused us more downtime than uptime all because our main hub the kn205
wont
> stay running during a electrical storm. Does anyone have any idea WHAT
could
> be happening here? Karlnet is clueless on this one. I have got to do
> something. Last resort is to replace everything karlnet doing backhauls
with
> mikrotik or something but damn I already have so much invested in my
karlnet
> backhauls!
>
> Thanks,
> John
>
> _______________________________________________
> Karlnet mailing list
> Karlnet@WISPNotes.com
> http://lists.wispnotes.com/mailman/listinfo/karlnet
>
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