Haggis Veteran Posted November 26, 2013 Veteran Share Posted November 26, 2013 Hey Guys quick questions for you all I have two access points in my house one downstairs and one upstairs Just now they have different SSID names lets say Haggis1 and Haggis2 This was so i could see what one i was connected to at the time, so i could see if they were automatically switching this doe snot work exactly how i want what upstairs the downstairs one provides a very poor signal, but a signal non the less so the device wont switch as it still has connectivity So what would be the benefit of having both Access Points called Haggis-Home instead of Haggis1 and Haggis2 would this help with auto switching to the strongest signal? Link to comment Share on other sites More sharing options...
The_Decryptor Veteran Posted November 26, 2013 Veteran Share Posted November 26, 2013 Yes, they need to have the same SSID to auto-switch anyway. Haggis 1 Share Link to comment Share on other sites More sharing options...
Praetor Posted November 26, 2013 Share Posted November 26, 2013 (edited) not only the same name (SSID) but also both networks must overlap a bit for the auto-switching function to work properly: if it doesn't (like your wifi card still connects to the AP that is most far away instead of the near AP) is because the signal is too strong and the overlap is higher then it should be; try lowering the signal of one of yours APs to decrease the overlap (if the AP supports that). Also you can test with InSSIDer to see the signal strength of both of those APs and that way you can find why it doesn't auto-switch properly. Link to comment Share on other sites More sharing options...
Haggis Veteran Posted November 26, 2013 Author Veteran Share Posted November 26, 2013 Yes, they need to have the same SSID to auto-switch anyway. Thanks I will change the name of it later and give it a try :) Link to comment Share on other sites More sharing options...
+BudMan MVC Posted November 26, 2013 MVC Share Posted November 26, 2013 Keep in mind that your wireless card can have settings on it that can be set to configure how and why your card might switch to different AP. It seems obvious - but you will all need to make sure that encryption type ans psk are the same, etc. The Evil Overlord 1 Share Link to comment Share on other sites More sharing options...
Haggis Veteran Posted November 26, 2013 Author Veteran Share Posted November 26, 2013 Thanks budman i will check how is this checked in Debian? Link to comment Share on other sites More sharing options...
+BudMan MVC Posted November 27, 2013 MVC Share Posted November 27, 2013 I would assume it would be iwconfig sens setting.. http://manpages.ubuntu.com/manpages/hardy/man8/iwconfig.8.html sens Set the sensitivity threshold. This define how sensitive is the card to poor operating conditions (low signal, interference). Positive values are assumed to be the raw value used by the hardware or a percentage, negative values are assumed to be dBm. Depending on the hardware implementation, this parameter may control various functions. On modern cards, this parameter usually control handover/roaming threshold, the lowest signal level for which the hardware remains associated with the current Access Point. When the signal level goes below this threshold the card starts looking for a new/better Access Point. Some cards may use the number of missed beacons to trigger this. For high density of Access Points, a higher threshold make sure the card is always associated with the best AP, for low density of APs, a lower threshold minimise the number of failed handoffs. On more ancient card this parameter usually controls the defer threshold, the lowest signal level for which the hardware considers the channel busy. Signal levels above this threshold make the hardware inhibits its own transmission whereas signals weaker than this are ignored and the hardware is free to transmit. This is usually strongly linked to the receive threshold, the lowest signal level for which the hardware attempts packet reception. Proper setting of these thresholds prevent the card to waste time on background noise while still receiving weak transmissions. Modern designs seems to control those thresholds automatically. Link to comment Share on other sites More sharing options...
Haggis Veteran Posted November 27, 2013 Author Veteran Share Posted November 27, 2013 oh and also do they need to be on same channels? Link to comment Share on other sites More sharing options...
sc302 Veteran Posted November 27, 2013 Veteran Share Posted November 27, 2013 channels are irrelevant, though they shouldn't step on eachother if they are in close proximity. Link to comment Share on other sites More sharing options...
The_Decryptor Veteran Posted November 28, 2013 Veteran Share Posted November 28, 2013 They shouldn't overlap partially, but overlapping entirely is fine (That is, 2 APs on channel 6 won't cancel each other out, they can easily avoid the signal, while 2 APs on channels 5 and 7 won't be able to distinguish a clear signal, and will just show as noise) If you're on 5Ghz you've got like 15 non-overlapping channels to play with though, so spread them out. Link to comment Share on other sites More sharing options...
Haggis Veteran Posted November 28, 2013 Author Veteran Share Posted November 28, 2013 its on 2.4 as its the crappy ISP only routers (will buy my own soon) Mine are on channel 6 and 11 just now Link to comment Share on other sites More sharing options...
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