1. Signal interference
Reason: There may be strong signal interference sources next to the router, such as microwave ovens, cordless phones, magnets, high voltage lines, etc. The wireless signals and strong magnetic fields issued by these devices will seriously affect the normal transmission and acceptance of the router's WIFI signal.
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2. The router firmware is faulty
Cause: The firmware version of the router is too low, or the firmware and hardware do not match, which may also cause the router to work improperly, resulting in unstable WIFI connection problems.
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3. Mobile phone WIFI function BUG
Reason: There may be bugs in the design of some mobile phone WIFI software, such as turning on the power saving mode, resulting in the automatic shutdown of mobile phone WIFI when idle. Or compatible with the router, causing other WIFI devices to drop offline.
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4, the wireless signal is weak
Reason: the router WIFI transmission power is too small, or the device is too far away from the router, and there is a shield in the middle. The WIFI signal is too weak, and the line will be dropped from time to time.
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5. Multiple WIFI signals are concentrated in one channel
Reason: The default channel of most wireless routers is set to 6 when they are delivered from the factory. If there are multiple wireless routers nearby, the same channel may affect each other.
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6. Virus causes
Why: The router itself is less likely to be poisoned, mobile phones or wireless devices are more susceptible to poisoning, and some viruses can take up most of the bandwidth in the background or cause dropped calls
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7. The hardware is faulty
Cause: The router WIFI transmitting module or the mobile phone WIFI receiving module hardware itself is faulty, virtual welding and other reasons, resulting in WIFI hardware can not work normally, there is a drop in the situation.
WiFi network automatic disconnection can be operated by referring to the following methods: Mobile phone Settings:
1, go to the mobile phone Settings → system upgrade, detect and update the mobile phone system;
2. WiFi hibernation is set on the mobile phone. Once the mobile phone enters hibernation, WiFi will also enter hibernation and disconnect; (Solution) Go to Mobile phone Settings →WLAN→ (left menu key) → Advanced Settings, and change the WLAN hibernation policy to Never Hibernation. 3. WiFi is automatically disconnected due to excessive WLAN data cache. (Solution) Go to phone Settings -- More Settings -- Application Management -- (select \"Show system processes\" from \"More\" in the upper right corner) -- Find WLAN-- click Storage, select Clear Data and Cache, Try to reconnect to WiFi (some models enter Settings -- more Settings -- app -- all -- find WLAN) Router Settings: 1, restart the router; 2. Connect to other WiFi networks for comparison;
3. Restore the router to factory Settings (please refer to the router instruction manual).
If the mobile phone WIFI signal is weak or unstable, resulting in frequent drops, it is recommended that:
1. Check whether the signal of other devices connected to the wireless network is good or full.
2. Check whether many devices are connected to the wireless network.
3. Restart the phone and search for the WiFi signal again.
4. If it is a home router, it is recommended to disconnect the power supply for a period of time and try again.
5. If you use the wireless network of the network operator, you are advised to try another location.
6. Try another wireless network.
7. Back up data, such as contacts, short messages, and multimedia, and restore factory Settings. If the problem still exists after the above operation, please bring the purchase invoice, repair card and machine to the Samsung service center for inspection.