Other issues like high ping or latency have often been reported by the users of the phone. The most common reported iPhone 6s plus Wi-Fi issues are...

• Wi-Fi gets disconnected on iPhone 6s plus.
• Wi-Fi stays connected but there is no internet on the receiver.
• Slow Wi-Fi speeds on metered/ non-metered connections on Wi-Fi.
• High Latency/Ping on Wi-Fi connections
• iPhone fails to connect to Wi-Fi
• iPhone can’t discover your Wi-Fi connection

These Wi-Fi issues found on iPhone 6s plus are pretty common issues found on other wireless supported devices too! And does not necessarily indicate that there is something specifically wrong with your iPhone 6s plus’s wireless hardware. There are some DIY (Do it yourself) fixes available for your smartphone in this case.

• Check your wireless router. Unplug it from the power source for 10 minutes and try again and see if the issues have been resolved.
• Turn your Wi-Fi off for five minutes and try again.
• Forget and reconnect your Wi-Fi connection.
• Restore the default network connection
• ( Reset from here: Settings > General > Reset > Reset Network Connections > * Enter Passcode * > Confirm)
• Update your iOS to the latest version available.

If none of the solutions mentioned above works to resolve your Wi-Fi issues on your iPhone 6s plus, you may need to get it checked by a professional technician. Here at ifixit bd, we have dedicated and professional technicians who specialize in repairing iPhone 6s plus Wi-Fi and its related issues. ifixt bd has 4 service points located in prominent locations around Dhaka, Bangladesh.