wireless range

[suthomas1]

Hi,

We have a wireless network.  There are two ssid's configured on the controller.

The strange thing is , when we'r near to an access point , out of the two ssid's , one of them shows very less signal strength, whereas the other one has better signal strength.

Why does this behaviour happens.

Appreciate response on this.

Thanks.

[Scott Fella]

Can you tell us more detail or provide some rssi value? Is what you see different from when a device actually associates to the SSID? Is the SSID configured alike... Open, wpa or wpa2, broadcasted or not broadcasted? Have you tried different devices or just one?

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[suthomas1]

We have tried different notebooks. both ssid's are configured similarly using wpa2 and are broadcasted.

There is no difference except the ssid name.

How do i check the RSSI value. Does it impact the SSid's on the same device.

Thanks.

[Scott Fella]

Look at the client when associated to the SSID. On the wlc, click in the monitor tab and then client and choose the client you want to see. It can vary -5+- db depending on the device.

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[Saravanan Lakshmanan · Accepted solution]

RSSI is arbitary and not absolute value. it varies based on client chipset vendor & driver.

http://www.wildpackets.com/elements/whitepapers/Converting_Signal_Strength.pdf

Are both clients connecting to same ssid, same radio on same AP.

Are both clients having similar OS, wireless driver, wireless card model & manufacturer.

#To check RSSI of specific client and its nearby APs:-

WLC>show client detail

#You can also do link test(supported on ccx4) from WLC's monitor tab to check the RSSI from AP to client & vice-versa.