Wow! I'm very sorry to hear that you are having connectivity issues with your device. It is common for WIFI connections to randomly disconnect based upon the signal issues inside your home. Since you have stated you have had this issue with a previous device, it does rull out a device issue. I recommend completing a reset on your home network. Once this is completed, please repair your device with your home network.
Please let us know if your signal issues persists after completing this step, thanks!
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