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Hi I’m new here so excuses. , I need a little help on this one please . I’m instaling some wifi ip cameras in a commercial building ,a health care home the building has many awkward walls as it’s had a few extensions built over the years .when I put up the cams I just could not get signals to the box from the cams so I purchased some RE200 units with some experimenting I can get the cams to talk to the NVR box via the RE200s now I need to know if I use say 3 extenders how should I set them with regard to the SSID names and the extender name I set all to channel 4 I won’t use 5ghz for the cams or the box but an use it as a link I need to get upstairs and downstairs but find it impossible to get signal from both locating the box at various locations. Was wondering if I can use a cable between 2 re200s to bring signal downstairs and then wifi it around Please any helpsvery welcome. Thanks all