NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
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...
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.
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?
Hi,
The slowness occurs regardless of the radio used, both 2.4hz and 5Ghz. The slowness is constant.
I have just done 5 tests on both 2.4 and 5.
The average speed of 2.4 was 20.82Mbps
The average speed of 5 was 21.04Mbps
The laptop is running windows 7
The laptop is connected to the AP in my office and the channel of the AP is
8 / 2.447Ghz
128 / 5.640Ghz
From my office I am unable to see any neighbouring wireless on the PC. However using an app on an android phone I am able to see some neighbouring wireless but their signal levels are very low, around -90 db
In another area of the school, so using a different AP on channels
10 / 2.457Ghz
44 / 5.220Ghz
There were a couple of neighbouring signals, again at the around -90db this time the laptop could see the wireless
The Average speed of the 2.4 is 21.96Mbps
The average speed of the 5 is 22.76Mbps
I am going to perform the same tests on another laptop, running windows 7 and also on another laptop running Linux to see if there is any differences.
Thanks
Rich
Hi,
Thanks for quick reply, based on the data you have provided. I suspect the wireless mode. Can you tell me what is the wireless mode set to by going to the following page.
Configuration->Wireless->Wireless->Wireless Mode.
Hi,
I have looked at the wireles mode and for the 2.4Ghz it is on 802.11ng and for the 5Ghz it is on 802.11na.
There is an arrow next to these which suggests a dropdown list to change this mode, however on both the 2.4 and the 5 the drop down does not drop down
Rich
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
