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RE: [Karlnet] AP LOCK up/ won't pass ip traffic but link test works

To: "'Karlnet Mailing List'" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] AP LOCK up/ won't pass ip traffic but link test works
From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Thu, 15 Jul 2004 12:16:30 -0400
List-post: <mailto:karlnet@WISPNotes.com>
Travis,

I would think that there is some other issue w/ these flaky clients,
except for this ap lockup bug, karlnet has worked very well for us and
it provides MORE bandwidth than any 802.11b solution I've tried, and
when you have clients uploading traffic to the AP/Internet, 802.11b
drops performance, while karlnet software continues to balance it all
out....

If your AP's are set for 11Mbps make sure that those links are solid and
watch out for multi-path or poor links, if you have a poor link (what
you called flaky) most likely due to poor RF, multipath, or fresnel
issues

Dan


> -----Original Message-----
> From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com] On
> Behalf Of Travis Mikalson
> Sent: Thursday, July 15, 2004 12:05 PM
> To: Karlnet Mailing List
> Subject: Re: [Karlnet] AP LOCK up/ won't pass ip traffic but link test
works
> 
> I've also been experiencing a strange problem where these same clients
> with poor signals/retrans (couple of long range links, 6 - 10 miles
plus a
> couple shorter-range clients with not enough height) when they are
passing
> any significant traffic at all will completely cut off service for
SOME
> other clients on the AP.
> 
> It seems like I have "resistant" and "flaky" clients. The resistant
ones
> will stay up and pass traffic fine with just a small increase in
latency
> like 30ms instead of 6 - 8, everything's good, everything's normal.
The
> flaky ones under no load will be just fine and normal, throughput's
good,
> latency is good right up until one of those clients with poor
> signal/retrans stats starts passing some traffic. The "flaky" clients
will
> then pretty much stop passing any traffic at all, although wireless
link
> test still works. I've already had to replace a couple of clients'
> wireless links with DSL because of this, that's pretty embarassing.
> 
> The clients in the "flaky" category have good signals, some are KN-50
with
> 1.20 and some are KN-50 with 1.00, there seems to be no rhyme or
reason at
> all to them acting like that. It's not their signal strength or
retrans or
> their particular software version. You can replace their KN-50s +
> antennas, try 1.00, try 1.20, no difference. It's like the particular
> locations themselves are cursed somehow. One "flaky" client I just
> replaced with DSL who was losing connectivity for minutes at a time
you
> could see the tower with your naked eyes less than 1.5 miles away and
had
> the most perfect link you've ever seen.
> 
> After dealing with show-stopper bugs like this and karlnet's best
> 802.11b-based offerings under optimal conditions performing at roughly
2/3
> the speed of any modern cheap 802.11b AP even in indoor bench tests
> between KN-200/KN-100, we're phasing karlnet out as much as we can. It
> just doesn't work well enough to keep me or my clients happy and
Karlnet
> support tries and would keep trying until end of days, but they mostly
> just end up wasting my time and money. They fixed all of my KN-50s
with
> 1.00 that were rebooting over and over and over again every 15 - 120
> seconds by providing me with 1.20, but that's the only success I've
ever
> had fixing a problem. As others have mentioned, clients get frustrated
and
> impatient when this stuff happens day in and day out and have to find
> alternate solutions.
> 
> They had me replace my KN-200 base with a flash base which was no fun
to
> do since it was the third motherboard until I got it to work with
their
> software and it had no effect on anything at all. Same interface hangs
due
> to bugs in their software, not even any increase
performance/throughput as
> karlnet and I expected with a beefier CPU under it.
> 
> It's been a nightmare, seems like I made a poor choice in karlnet,
> although the CPE price was right and it provided the range I need.
We're
> phasing Karlnet out as much as we can.
> 
> -T
> 
> Caleb Carroll wrote:
> > Who is still experiencing this "feature" with v4.45 firmware?
> >
> > *********** REPLY SEPARATOR  ***********
> >
> > On 2004-07-14 at 3:00 PM Dan Metcalf wrote:
> >
> >
> >>Bob,
> >>
> >>I agree, if karlnet can't fix this I"ll have no choice... its very
> >>frustrating when 30+ clients call me up (after I received the
30+pages
> >>that they down) and when I do the wireless link test everything is
FINE
> >>
> >>Dan
> 
> --
> TerraNovaNet Internet Services - Key Largo, FL
> Voice: (305)453-4011 x101   Fax: (305)451-5991
> http://www.terranova.net/
> ----------------------------------------------
> Life's not fair, but the root password helps.
> 
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