Slow Wifi Speed

Hey guys,

We have an office building with multiple floors and wireless AP's on them.

Now, the speed is very slow through the day and even slower obviously during peak hours.

I want to see what cost effective AP's we can go with, and what troubleshooting steps you think would be great.
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Cobra25Asked:
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mikesmithccsOwner/OperatorCommented:
Are you stating that network traffic is slow, or internet traffic is slow?
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Cobra25Author Commented:
internet, on wired its fine.
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mikesmithccsOwner/OperatorCommented:
So, if you go to one of you wireless computers that is experiencing the slowness and you run  a continuous ping (-t) back to the gateway address, what kind of latency range do you see?
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Cobra25Author Commented:
i will do that again, but it did look good from last time. Im getting about 25% speed of what i get on wired.

I was thinking about bringing in some other WiFI equipment to test it from say a best buy. Which ones do you recommend?

Trying to just isolate some variables here.
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mikesmithccsOwner/OperatorCommented:
Can you tell me what the latency is, in milliseconds?
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Cobra25Author Commented:
like 1ms.
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Cobra25Author Commented:
the gateway is a firewall though, not the AP's.
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mikesmithccsOwner/OperatorCommented:
ok can you do the same to www.google.com and report back the latency.

And what were trying to do here is isolate the cause. Also, what kind of APs are these?
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Craig BeckCommented:
What speed is wired?  1Gbps?  100Mbps?
What speed is wireless?

I'm talking about connection speeds, not how much speed you get... As in what link speed does the wired or wireless NIC say?
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Cobra25Author Commented:
100mb

I'm talking about inet speed here not lan speed
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Craig BeckCommented:
That's OK.  I want to know what the link speed is before assessing what 'slow' is, so if you could tell me what the wireless connection speed is too that'd be great.
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Cobra25Author Commented:
It is N
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Craig BeckCommented:
Thanks, but that doesn't tell me what speed the wireless client is connecting at.

Saying it is N could mean anything between 1Mbps and 450Mbps.
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Cobra25Author Commented:
Its a g network. Its a ubiquity setup.
I walked around today and I noticed even though, I had good signal ping times were poor and speed tests were not good either.
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Cobra25Author Commented:
Some areas were good, others very poor.
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Craig BeckCommented:
Ok, so I'd suggest you get a RF survey done.  It sounds like you either have poor coverage or you have some interference from other 2.4GHz devices.  That would cause irregular speeds and general poor performance.

Could you use a tool such as Acrylic Wifi Scanner to show me what a client is seeing in one particular spot?
https://www.acrylicwifi.com/en/wlan-software/wlan-scanner-acrylic-wifi-free/

Install that, then stand in one place with a laptop where you think it's not performing as you'd expect, then leave it to graph for a couple of minutes, then post a screenshot.
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