The Wi-Fi dongle on the JVC LT-32C655 can sometimes get poor Wi-Fi signal, and it's usually because the dongle either isn't connected properly, or not positioned to get the best signal.
Make sure the Wi-Fi dongle is connected using the extender that came with the TV, and not connected directly to the TV. The extender should be connected to the USB port on the TV, and the dongle should be connected to the extender.
Hopefully that's you sorted, but if you need more help, you can get in touch with a Team Knowhow Expert here.
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