duplicate SSID in scanning wifi result
android-wifi, ssid, wifi
Solution
Are you having several router modems for the same network? For example: A company has a big wireless network with multiple router modems installed in several places so every room has Wifi. If you do that scan you will get a lot of results with the same SSIDs but with different acces points, and thus different signal level.
EDIT: According to Walt's comment you can also have multiple results despite having only one access point if your modem is dual-band.
Problem
i'm trying to make an app that can create a list of available wifi access point. here's part of the code i used: ``` x = new BroadcastReceiver() { @Override public void onReceive(Context c, Intent intent) { results = wifi.getScanResults(); size = results.size(); if (results != null) { for (int i=0; i<size; i++){ ScanResult scanresult = wifi.getScanResults().get(i); String ssid = scanresult.SSID; int rssi = scanresult.level; String rssiString = String.valueOf(rssi); textStatus.append(ssid + "," + rssiString); textStatus.append("\n"); } unregisterReceiver(x); //stops the continuous scan textState.setText("Scanning complete!"); } else { unregisterReceiver(x); textState.setText("Nothing is found. Please make sure you are under any wifi coverage"); } } }; ``` both textStatus and textState is a TextView. i can get this to work but sometimes the result shows duplicate SSID but with different signal level, in a single scan. there might be 3-4 same SSIDs but with different signal level. is it really different SSIDs and what differs them? can anyone explain?