Overall our Trango APs have lasted very long, been super reliable, more
reliable than any other product we have ever used. Many going on 10 years
now, without a blip.
But, for the few that have failed, one of the commom symptoms is going deaf.
It can be hard to troubleshoot because at first, they'll just get lower RSSI
for a short period usually at peak Sun/heat time, and get stronger at night.
The exact same symptoms occur when there is random noise. The noise
resulting in 5-10 db loss, and full strength comes back when noise is gone.
So sometimes the only way we know its the radio was to replace the AP, and
see if the same problem occurs. Or relocte the AP, and see if it has the
same random symptoms. In some cases, the APs go deaf, and CPEs see them with
RSSI but cant associate because APs cant hear them.
I dont have an exact number, but I know I can count the total failure over
10 years on fingers of one hand, with a finger or two to spare. So it does
not happen often. But its one reason I tend not to want to buy used APs.
You'd have no way to test if it was flaky before putting it in the field for
a while..
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
- Original Message -
From: "Gary Garrett"
To: "WISPA General List"
Sent: Saturday, March 20, 2010 2:32 AM
Subject: Re: [WISPA] Trango 5830 AP going deaf
> That is the classic sign of a mid path lightning strike.
> Kind of like looking at a nuclear explosion with field glasses.
> It probably hit somewhere closer to the AP than the clients.
>
> We had a strike in the middle of a lake... it got the AP and all the
> clients all around the lake shore, not the Backhaul though because it
> was a narrow beam pointed up at a mountain not down at the water.
> That really sucked.
>
>
> On 3/19/2010 2:10 PM, Randy Cosby wrote:
>> Anyone ever seen a Trango 5830 AP go deaf? I have one that was showing
>> RSSI from AP to SU at 10 to 13db higher than SU to AP. Same on all
>> channels, vert or horiz polarity. Cruddy linktests as well.
>>
>> Thought I might have a bad noise problem, but replacing the AP fixed it.
>>
>>
>>
>
>
>
>
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