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Samsung Galaxy S5 Can Connect to Wi-Fi but No Internet or Data [How to Fix]

This article serves as our response to one of our readers who has sent us email regarding an issue on her Samsung Galaxy S5 wireless function after the Lollipop OS update. Anyone who is troubled with the same connectivity issue may likewise refer to this troubleshooting guide.

Main problem (excerpt):

"For some reasons, my phone can connect to a Wi-Fi network, but it has no Internet or data connection."

The following methods demonstrated in this post are potential solutions to the aforementioned problem. Follow these steps if you are successfully connected to a Wi-Fi network but have no connectivity/data connection on your device, or you are unable to browse a website or sync your accounts.

NOTE: After completing each method, test your device to see if the problem has been fixed. Otherwise, continue to the next method.

Method 1: Check the signal strength.

Check the signal strength of the Wi-Fi network your phone is connected to. It's on the upper-right of the screen. The more bars you see indicates the better the signal your phone is getting. In case you see the bars of signal strength is less two, try to move your phone closer to the wireless router and see if it improves.

Method 2: Remove any interference.

Wireless signals can be interferred with some devices at home, including microwave ovens and some cordless phones. To make sure this is not causing you the trouble, try to turn these devices off temporarily or move them farther away from your phone.

You can also change the router or access point settings to use a different wireless channel or set the channel to be selected automatically in case it is set to a fixed channel number. If you need more help on your wireless router configuration, please contact your wireless router manufacturer or your Internet Service Provider.

Method 3: Check physical connections (if you're using Ethernet cables)

Sometimes, network/connectivity issues like this one could occur due to loose or disconnected Ethernet cables, telephone cords, power cables, USB cables, or DSL or cable connections. So here's what we suggest, if you are using similar Internet setup at home:

1. Check all the connect from and to our router or high-speed modem (if available).

2. If the connections are fine, power cycle your wireless router and high-speed modem (if available). If your router or modem does not have a power switch, you can just disconnect its power cord from the back, wait for 2 minutes, and then turn on the router or modem by reconnecting the power cord.

3. Check the Internet LED indicator in front of the router and make sure it's on or already active. Re-attempt to connect to the Internet or browse a website to see if you can. If not, continue to the next method.

4. Check your phone's Wi-Fi settings and turn Wi-Fi off and on. If you need help, here's how to get there:
a. Touch Apps from Home.
b. Touch Settings.
c. Touch Wi-Fi.
d. Touch the slider to turn Wi-fi OFF, and then touch it again to turn it back ON.
e. Return to the Home screen, and then open a browser. Touch Apps->Internet or ->Chrome.
f. Try to navigate to a website and see if you can now connect.

If you are still unable to connect after rebooting your router or modem, try to connect your other Wi-Fi device. If neither device can connect to the Internet, please contact your Internet Service Provider and escalate your concern. Also ask if there are any ongoing outage affecting wireless network in your area.

Method 4: Check if MAC filtering is enabled on your device.

MAC filtering is a security feature that can be enabled or disabled on your phone. There are some wireless networks that utilize this additional security method. When MAC filtering is enabled or turned on, only those devices with MAC addresses that have been added to the access list can connect to the network. MAC addresses are unique identifiers assigned to each device with wireless transmitter.

If your device is in the MAC filtering list and you want it to be removed, please contact your Internet Service Provider or router manufacturer for further assistance.

You can also check the MAC address on your phone with these steps:

a. Touch Apps from Home.
b. Touch Settings.
c. Touch About device.
d. Touch Status.
e. Scroll to Wi-Fi MAC address.

Method 5: Verify if your phone is using a Public WiFi Network.

Majority of public wireless networks like those at coffee shops, hotels, and restaurants would require you to perform additional authentication through the web. And failure to meet this requirement can also cause you trouble connecting to the Internet even when your phone is already connected to the wireless network.

Here's how to check it on your phone:

1. Touch Apps.
2. Touch Settings.
3. Touch Wi-Fi.
4. Touch the network you want to use or connect to. Also check the signal strength displayed next to the network name and ensure it's more than two bars. Yet, full bars is much better.
5. If the network is secured, you have to enter the correct password. To avoid error in typing password, touch Show password to show the password as you type.

NOTE: You can ask the authorized person or company providing the service for the Wi-Fi password.

6. Touch Connect.
7. If necessary, touch Apps->Internet or ->Chrome.
8. Navigate to any website.

9. If prompted, follow the instructions on the authentication page to connect to the public network. You may also be asked to accept the terms and privacy policy before you connect to the Internet or enter additional username and password to proceed. Just do so, if required.

Method 6: Disconnect from/Reconnect to the wireless network (Forget Network).

If you are unable to connect to a previously connected wireless network or known Wi-Fi network, try to disconnect your phone from that network and connect again. Here's how to do it:

1. Touch Apps.
2. Touch Settings.
3. Touch Wi-Fi.
4. Touch and hold the network name.
5. Touch Forget network.
6. Touch the network name again.
7. Touch Connect to reconnect to that network.
Again, if the network is secured, enter the correct password.

Method 7: Update Software on your wireless router/phone.

Sometimes, the problem occurs due to an outdated software on the wireless router or phone, or both devices. That being said, update your device software if necessary. Regular updates help your device to get the latest software enhancements and/or bug fixes.

  • To update your wireless router to the latest software version available, please contact its manufacturer or your Internet Service Provider.
  • To update your Galaxy S5, you can either use the KIES software or update via Settings menu.

To update through your phone's Settings menu, follow these steps:

1. Touch Apps.
2. Touch Settings.
3. Touch About Device.
4. Touch Software Update.
5. To proceed with the software update, follow the onscreen instructions until it's completed.

Hope this helps.

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