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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