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wndap360 and wc7520 speed issues and correct setup
Hi,
I am having issue with the speeds of the wndap360's. we have 18 of these setup so far, i have 2 more to setup up, we have had them for quite a while now and I havn't had any issues. Recently the wireless speeds are seeming to be very slow, I was looking to find out what speeds should I be expecting.
looking at the usage graph in the wc7520 is suggesting that the peak network usage is 3.20Mbps, that seems very slow to me.
i have run some tests using iperf to a wired device and to a wireless device and the speeds arnt much better.
Wireless reports at 25.9Mbps
Wired reports at 847Mbps
I know that obviously wired is going to be much quicker but that difference seems like something may be wrong on the wireless side.
I am happy to scrap all the settings i have and start aginif need be, but i would like to know if its posible to sve the curent settings to revert back to if need be.
Thanks
Rich
Hi,
The maximum speed depends on the channel width, guard interval, the channel congestion and the distance of the client from the AP.
In general 2.4Ghz wireless is more congested, so as and when the congestion increases the data rates will go down to increase the reliability.
When the channel width is set to dynamic 20/40Mhz and if the AP can operate at 40 Mhz, then the maximum speed will reach to 270Mbps, if it cant operate at 40Mhz then the data rate will fall down to 130Mbps maximum. But if we configure the channel width to static 20Mhz the maxmium speed the AP can operate is 130Mbps, and it will never be more than that. That is the reason you are seeing the data rate at 130Mbps.
15 Replies
I have found the back up settings on the controller now so dont worry about that please
Hello MrBarnett,
Welcome to the community!
I'd like to know how the AP's are configured are they running on all 5Ghz and 2.4Ghz? What firmware version is the controller using? Before you noticed the issue, were there any changes made on your network?
Thanks,
Hi John,
Thanks for the reply.
The AP's are configured with both 5Ghz and 2.4 Ghz, the firmware is the most recent I believe: 2.5.0.43.
I do not recall having any recent changes to the network, I couldnt tell you how long the issue has been going on for but the last major change to the network was possibly 18 months ago when we changed all the switches to gigabit switches, i dont think the issue has been around for this long.
Rich
Hi,
From your previous post it is clear that you are using both the radios 2.4 & 5 Ghz. When you see the slowness in the network do you know to which radio your client is connected (2.4/5)? and to which AP?. at is the operating channel of that AP?
Over a period of time the wireless environment may change which can effect the overall performance of the network. Because wireless is a single broadcast domain any new AP addition in your neighborhood can effect the performance. Can you answer the above questions?
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