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Go into the Settings app on your device.
Tap the Wi-Fi item.
Next, find the SPS_Secure network and tap the little circled i icon next to it.
Tap "Forget This Network".
You can now try to reconnect to SPS_Secure.
Note: Android comes in many flavors and versions that may have significant differences. The below instructions should at least get you close.
Go into your Settings app, under Network & internet, or Wi-Fi, or Wireless, depending on your flavor of Android.
Under Network & internet, tap on Internet.
Select the wireless network you want to forget (Eg. SPS_Secure).
Tap Forget.