The Samsung Galaxy S9 and Galaxy S9+ are amazing smartphones with an impressive hardware, yet the software issues continue to plague its users. If you are looking for how to fix Galaxy S9 Wi-Fi calling issues, you have come to the right place. We have handpicked some of the most common fixes that users have already tried and it worked well to fix those calling issues.
See also: How to fix Samsung Galaxy S9 GPS Issues
How to fix Galaxy S9 Wi-Fi Calling Issues
Method 1: Turn on Wi-Fi Calling as Your Default Method
The issue persists for many because when you walk into your house, your phone will automatically switch to the home network and it does the same for your office network as well. The device is supposed to automatically switch to 4G or Wi-Fi based on availability. When it doesn’t do the same, you can force it to not use cellular connection especially if you hardly spend time out of a fibernet zone throughout the day.
- Open your settings page on the Galaxy S9 phone
- Turn on the Wi-Fi connection once
- Tap to open your apps try by swiping down from the top of your Android smartphone
- Find the icon and switch off the wireless connection once again
- Head to settings and scroll to more connection settings
- Open Wi-Fi Calling and choose Wi-Fi preferred
- If it still wouldn’t work, activate Never Use Cellular Network to activate all calls on your home or office network
Method 2: Ejecting Your SIM Card and Turning off Wi-Fi Calling
When you browse through the web, you will realize that the majority of the issues on your Samsung Galaxy S9 smartphone can be fixed by doing a quick reboot. In order to fix this problem, you can try the same but there are some conditions to be met before you do so.
- Don’t restart your phone, but switch it off and do a complete reboot
- Press and hold the power button to switch off your device
- Once it is completely powered off, use the SIM ejector tool to bring the card out of your phone
- If you haven’t done this in a long time, consider swiping the SIM clean
- Switch on your phone without the card and head to the settings page
- Make sure to turn off Wi-Fi calling and shut down your phone again
- Insert your SIM and reboot which should clear all cache on your Android OS and will fix your calling issue
Method 3: Check Your Router’s Distance to Solve Frequent Call Dropping Issue
Being wireless is fun but most users forget the fact that they are actually moving very far away from the router. The devices can work only to a certain extent and if you have been experiencing frequent call dropping issues during Wi-Fi calls, you are probably moving too far away from the signal range.
- Use a different smartphone and stand in the same spot to confirm if the problem actually exists with your device, not the router
- Upgrade your router and it should allow you to make calls from any part of the house without signal issues
- If there are walls or other obstacles continuously blocking the signal, you probably need to move the router or move your phone to an open space to make uninterrupted calls
- Check if other electronic devices such as Bluetooth headphones, computers are creating an issue to stop you from using your phone
- Download and install any updates rolled out by your service provider which might solve your problem if it has already been reported by many
Method 4: Restart Your Modem or Router at Home/Work
If you have been continuously facing Wi-Fi calling issues on your Galaxy S9 smartphone, it is time to restart your modem or router. Call the ISP to confirm if they have been facing any problems or upgrading the servers. At times, it could cause similar issues for days or even weeks and unless you restart your device, it will not be solved.
- Check if the internet cable on your router and modem is properly fit
- Press the power button to switch off the device
- You can also remove the power plug to do a hard reset which often solves most identified problems and if your ISP has done an upgrade, it will function as intended
- Press the power button again to turn it on
- Consider leaving the power plug removed at least for a minute before you plug it back in
- Be patient until all the lights on the router are green and it is ready to get you online again
Try making a Wi-Fi call and see if it has fixed the issue.
Method 5: Clear all Saved Wi-Fi Networks on Your Galaxy S9 Phone
Whether you have newly purchased your smartphone or have been using it for a while now doesn’t matter. How to fix Galaxy S9 Wi-Fi calling issues is a problem that is best solved through one of the methods mentioned here and make sure you try them all before you consider going for a replacement for your Samsung phone.
- Click on the Settings gear icon to open the page
- Scroll to find the Connections option
- Open the Wi-Fi settings page
- A list of saved networks will be displayed on your phone
- Tap and hold them before the forget option appears. Remove all your saved networks
Some rogue network that you could have added during your trip, be it a hotel room or airport connection could be causing this issue.
- Add a new, safe Wi-Fi network now
- Head to the Settings page, Connections
- Open the Wi-Fi page and trigger your phone to search all available connections
- Tap More to add a new connection and it will prompt for your network password
- Enter the password and you will get connected to the network
Method 6: Use the Reset Network Settings Option on Your Galaxy S9 Smartphone
The cellular service provider will provide a bunch of network settings that your device will download and store when you activate it for the first time. They do provide updates, but at times, if there are missing files or wrong settings; it could lead to bugs and interrupt your Wi-Fi connections. By resetting the network settings, you can finally overwrite the existing ones, fix any errors associated with it and see if it would help you fix the problem.
- Open the Settings page on your Android-powered Galaxy S9 smartphone
- Tap to open General Management
- Find the option named Reset and click it
- Tap on Reset Network Settings
- The phone might request your fingerprint or pattern to authorize the request
- Do so and your network settings will be reset back to the original settings which might finally fix your Wi-Fi issues
Method 7: Tweak Your Cellular and Wi-Fi Settings Using Airplane Mode
A common issue that continues to bother people is that the phone tries to switch between cellular network and Wi-Fi during a call which leads to low call quality. You can avoid it by turning the Galaxy S9+ phone into airplane mode and connect it only to a wireless network.
- Scroll down the notification tray where you will find the Airplane icon
- Tap on it to activate it and all connections will immediately be blocked
- Turn on Wi-Fi and let your phone connect to your home router
- Try making a call and see if it works
- You can also ask your Internet Service Provider or a technical engineer to make sure your router has all ports open
People who play multiplayer games are aware of open ports and how they affect incoming, outgoing connections. You can seek help from your ISP to help open those ports up or can confirm it by using multiple routers to see if the problem actually exists even with other phones and not just your smartphone.
Method 8: Enable Wi-Fi Calling for Home
A Reddit user has suggested that his Wi-Fi issues on the Galaxy S9 smartphone were solved when he enabled the network at his home. While some users say the option is not available on their phones, if you belong to the supported network and find the feature, you can try it to fix this issue.
- Open the Settings page and head to Calling Plus
- Find the option that reads Wi-Fi Calling
- Scroll to find Wi-Fi Calling Networks and make sure your home network is enabled
- If your home network is disabled, you may not be able to make phone calls which is why it is important to undergo this process
A factory reset is what would be the final option to try if you have already done everything mentioned here and still face the same problem. It will delete all your data and your Galaxy S9 Plus phone would become as good as new. It is advisable to back up your data and be prepared before you undergo the procedure to reset your device and erase all data.
Knowing how to fix Galaxy S9 Wi-Fi calling issues might sound intimidating, but it’s only a matter of time before you find which fix actually works for you. Use any technical knowledge that you possess and identify if the problem persists on your phone or is caused by an external device after which you can make an informed decision.