Re: OT: Wireless Signal Strength

Also try resetting the AP's one by one, what it will possibally do
that once w=one AP is UP and its using channel 1, the 2nd AP will
startup, detetct that other AP is using channel 1 and will start using
channel 6 or other non-overlapping channel.

Wassalam,

Mohammad Zahid Saeed

On Sun, Dec 26, 2010 at 10:17 AM, Khurram Noor
<engr.khurramnoor_at_googlemail.com> wrote:
> Salam Saeed,
>
> I checked your idea. I used one D-link wireless router for Wi-Fi
> connectivity on the same machine where signal strength problem was
> encountered, but it is working fine. even on greater distance.
>
> The thing with WLC managed AP which is very surprising is that the users
> even sitting very close to the APs are encountring this problem. There are
> two WLCs, each has 12 APs connected. This problem is particular in areas of
> floor were are only two APs on the whole floor. By the way those APs are not
> properly placed so i will try changing the position to see if convergance
> for wireless network improves.
>
> Regards,
> Khurram
> On Sun, Dec 26, 2010 at 4:48 PM, Mohammad Saeed <mzsaeed_at_gmail.com> wrote:
>>
>> Assalamualaikum,
>>
>> If this is problem with all AP's, then its highly unlikely that all
>> AP's have started having HW problem at once. I would suspect most
>> likely there is some interference problem, check if something has been
>> changed/added in the building?
>> I would recommend installing a standalone AP (not registering with
>> WLC) and connect to that AP to eliminate WLC's are not causing the
>> issue. If cleint clnnecting to that AP does not suffer similar signal
>> strength issue, then check whats been changed in WLC?
>>
>> Wassalam,
>>
>> Mohammad Zahid Saeed
>>
>> On Sun, Dec 26, 2010 at 1:18 AM, Khurram Noor
>> <engr.khurramnoor_at_googlemail.com> wrote:
>> > Dear all,
>> >
>> >
>> >
>> > I am having a strange problem with a client. He has around 25 access
>> > points
>> > installed in a 8 floor building. They are using cisco AP 1140 with 2
>> > WLCs
>> > 5508 for management. Things were fine in the beginning but now the
>> > problem
>> > is with the signal strength. The signal bars on any system before
>> > connection
>> > shows excellent strength, but as soon as the system gets connected, the
>> > signal strength starts to decrease and becomes poor. this causes latency
>> > and
>> > timeout. Browsing becomes really slow and wireless users are suffering.
>> >
>> >
>> >
>> > Wireless Lan controller runs an algorithm called RRM, which
>> > automatically
>> > adjust Tx power, channel assignment and many other parameter. If there
>> > is
>> > someone in this group who know can tell what settings on WLC need to
>> > change.
>> > Could this be a result of some power issue on the catalyst 4500 switch
>> > which
>> > is a POE supported? Or is this some malware kind of thing?
>> >
>> >
>> > By the way wired users have no such problem (latency, delay etc)
>> >
>> > --
>> > Khurram Noor
>> >
>> >
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>> >
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Received on Sun Dec 26 2010 - 11:46:14 ART