Why isn't my Wi-Fi signal as strong on my iPhone?

A few weeks ago I had great Wi-Fi connection, for years. But now I can't catch Wi-Fi from anywhere in my house unless I'm in the room where the router is… I got a new router but as soon as I leave the room (where the router is) my Wi-Fi signal drops! It's not only happening at my home but also at my gram gram's house and my sisters house. It's really frustrating. So I know it's not my router it's my iPhone.

Maybe your antenna is damaged on your iphone. It does haappen.

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