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RSSI Signal ranges

I am troubleshooting a problem where just one user

is having a problem.  They intermittently drop their wifi

connection.  If they do a repair, the connection comes back up without a problem.

No other user is having a problem at this location (at least that has been reported to me).

I am getting ready to have them look at upgrading the wireless driver and/or recreating the wireless profile on the machine.

My question is there an explanation of the RSSI signal ranges (i.e. what is bad, good, better, etc) ?  For example, the user that is having a problem is showing a RSSI that is ranging between -74 to -78.    I know that Cisco VOIP phones start having problems at -70.  I have to deal with a regional IT person that I need to present the info to him in this way.



Re: RSSI Signal ranges

Hi Ronald,

At -84, you will most likely lose connection completely.

At -80, you can't use all data rates and are probably facing a lot of retransmissions.

At -75, the signal is considered as poor, you might have some retransmissions but you should still have connectivity.

In any case, at around -75, the driver should be thinking about roaming. So it's either a bad driver (not roaming) or there is simply no better AP around.

There is no general values since this differs on all clients, but what I wrote above is a good approximation. Starting -75, the client start to lower data rates.

Best regards,



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