I have two in outdoor boxes on our wireless network. They ran through
the summer with no trouble--Southern Utah desert 95+ degrees almost
every day, often going over 100. Not sure what the temp was in the
boxes, but there is an APC UPS with them, so it would have been pretty
toasty. We also have about 25 in outdoor boxes on the side of homes
that we are using for fiber ONTs. I haven't seen a problem with any
of them related to heat.
OTOH, we did have about 7 or 8 units that had trouble in extreme cold
back in December. They would start dropping packets once it got below
freezing, and it would get worse as the temp droped. It seemed to be
with a particular batch of units that we bought around summer of 2013.
Units before that time were fine, as were the new units with the
power connector on the back. Note that all of these are 2011-LS-IN
units.
Craig
Quoting Paul McCall <[email protected]>:
Hi Heith,
Thanks for the feedback. No, we aren't in the same climate, but
that's interesting.
So, I know it do cold well, that's for sure ! :)
Now, if I can get a couple votes on the hot side of things, we're good.
Paul
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Heith
Petersen
Sent: Thursday, January 16, 2014 8:49 PM
To: Mikrotik discussions
Subject: Re: [Mikrotik] Use of RB2011 in outdoor environment - WAS:
major problem with rb751u-2hnd routers
Paul,
my buddy just north of me has 7 of them on his small network.
Installed a year ago. Had to swap one of them out due to the need
for a bigger router.
Otherwise been good in our South Dakota weather, not near as hot as
your weather but a little on the cold side at times. All of these
sites are mostly just a 12 x 18 enclosures outside with just
venting, no environment control
-----Original Message-----
From: Paul McCall
Sent: Thursday, January 16, 2014 7:27 PM
To: Mikrotik discussions
Subject: [Mikrotik] Use of RB2011 in outdoor environment - WAS:
major problem with rb751u-2hnd routers
We currently have a lot of RB493AH out in the field at tower sites.
When looking at the 2011 series, I see that they should be a fit
faster, and cheaper as well.
But, I also see the description saying its an "indoor device". We
use the 493AH in a normal case and inside a metal job box in the
Florida sun that has fans but certainly gets warm.
So, what makes the 2011 an "indoor device" ? Anybody of real world
experience in an outside tower box as I have described?
Paul
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Corey Freeman
Sent: Friday, January 10, 2014 6:20 PM
To: Mikrotik discussions
Subject: Re: [Mikrotik] major problem with rb751u-2hnd routers
Paul,
There are posts on the MT forums of complaints with similar issues.
I have had similar issues with the 751 and 951 units. Signal
strength is sporatic and throughput is initially ok, then quickly
drops off to zero. I switched to 2011 series and have never looked
back. MT keeps avoiding questions about this on the support forums
so it's highly unlikely that they will ever admit the root cause.
My customers were unhappy with some of the units I deployed, so I
just quit using them alltogether.
Corey
On Fri, Jan 10, 2014 at 5:07 PM, Paul McCall <[email protected]> wrote:
We did an install today and we have been using rb751u-2hnd quite a bit,
as they generally make for a nice solution.
We did a wireless scan of the house (with our CPE radio off even) and it
looks clean.
We tried (2) different rb751u-2hnd and both have same issues, regardless
of firmware versions 4, 5 or 6.
WEAK signal... like 10 ft. away its weak even... down to around -68 dB ...
at 20 ft. its gone. We use the same settings all the time and I swear I
think I have gone through every single possibility of frequency, band,
frequency mode, country code, antenna gain, default or configured data
rates, dynamic or indoor distance settings, HT RX/TX Chains and antenna
modes, every combination of Tx Power Mode, and bumping up or down 3db,
6dB, 9dB, etc.. Back at the defaults its shows Current Tx power at 25dB
to 30dB (depending on modulation of course)
Pulling our hair out for past 3 hours trying to make it work.
Do we possibly have two Brand new bad units? We have 5 others from the
same purchase lot working normally.
Any thoughts?
Paul McCall, Pres.
PDMNet / Florida Broadband
658 Old Dixie Highway
Vero Beach, FL 32962
772-564-6800 office
772-473-0352 cell
www.pdmnet.com<http://www.pdmnet.com/>
[email protected]<mailto:[email protected]>
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