Samsung Galaxy S8 users are reporting a mysterious problem with the smartphone.

Some phones are failing to receive text messages, and it isn’t clear why.

The strange issue appears to be mainly affecting S8 users in the US, with people on several mobile networks, including Verizon, AT&T, T-Mobile, and Sprint, flagging it up online.

How to improve your phone's battery life Show all 9 1 /9 How to improve your phone's battery life How to improve your phone's battery life Limit notifications Notifications are incredibly useful, but they also drain battery life and not all of them are actually necessary. Switching off notifications for certain apps can help your phone’s stamina. On Android, head into Settings, hit Apps and select those you don’t need to be notified by. On iOS, go to Settings and then Notifications. How to improve your phone's battery life Disable auto-sync Certain apps, such as email and social networks, constantly run in the background even when you’re not using them. This is so you see updated information and updates when you do open the apps, but the benefits can be offset by the amount of battery life auto-sync can eat up. On Android, you can turn off auto-sync by going to Settings, Accounts and hitting the menu button. On iOS, go to Settings, General and Background App Refresh. However, since auto-sync is genuinely useful, we’d recommend disabling it when you know you’re going to be running low on battery life, rather than switching it off all the time. How to improve your phone's battery life Switch off location services GPS is a huge drain on your phone’s battery, as more and more apps use your location data to work out where you are, and shape your experience according to that information. Unless you’re using a Maps app, you can get by without it. To turn off GPS on Android, go to Settings and Location. On iOS, go to Settings, Privacy and Location Services. How to improve your phone's battery life Lower brightness Your phone’s display is responsible for the biggest impact on your battery life, but it’s easy to limit how much energy it uses up. Auto-brightness is convenient, but often sets the screen brightness to a much higher level than it needs to be. Turning auto-brightness off, setting your display’s brightness to a lower level and adjusting it when you need to is much more sensible. How to improve your phone's battery life Uninstall apps you don’t need Some apps drain more battery life than others, and it’s worth working out which ones you can do without. Facebook, for instance, is known to have a big impact on your phone’s battery, and you can eliminate this by deleting the app and using the social network in your web browser instead. On Android and iOS, you can see the apps and processes that are affecting your battery by going to Settings and Battery. From there, work out what you can delete or replace with a less-demanding alternative. How to improve your phone's battery life Cut your assistant off Virtual assistants are becoming increasingly capable, and therefore increasingly important in tech companies’ eyes. Not all consumers share the enthusiasm of Google and Apple though, and rarely - if ever - use Google Assistant and Siri. Whether you use them or not, by default the two assistants are always listening out for their trigger words, and this uses up battery life. On Android, you can switch this off by going to Settings, Google, Search, Voice and “Ok Google” detection. On iOS, go to Settings, Siri and Allow “Hey Siri”. How to improve your phone's battery life Stop vibrating Vibrate is a great middle-ground between a potentially disruptive ringtone and total, uncertain silence, but it also uses up the most battery life of the three options. You can go a step further by also disabling tap feedback, which can be reassuring, but is ultimately unnecessary. How to improve your phone's battery life Turn off connections If you’re connected to a Wi-Fi network, switch your mobile data off, and vice versa. Similarly, remember to turn off Bluetooth and NFC when you’re not using them. How to improve your phone's battery life Airplane mode Airplane mode isn’t just for when you’re on an aeroplane. If you know you’re not going to have or won’t need signal or a Wi-Fi connection for a good amount of time, it’s worth enabling Airplane mode. Otherwise, your phone will use up battery life by pointlessly trying to connect to a network.

It’s being discussed on multiple threads on Reddit, and some users have suggested a potential fix for the extremely annoying glitch.

Disabling Advanced Messaging in Samsung’s SMS app has worked for some users, but not everyone.

The problem isn’t preventing all SMS messages from getting through – just some of them. That arguably makes it even more annoying.

"I'm on the unlocked S8+ and recently have not been receiving all of my text messages," wrote a user called Platypus_God. "I receive some and have some that do not come through even though they show as sent from the senders. For instance, I will receive some texts my wife sent me, but not others. Any idea what's up? Full disclosure, I did spill a glass of water on my phone recently and was able to dry it off quickly. But from my understanding the phone should be able to handle a quick spill. Also, I am on AT&T."

Another user, called JeremyChrist, wrote: "I have a s8+ and for the past month I have only received about half of the texts my wife sends me. At first I blamed her poor choice of a phone (iPhone) but just now my brother informed me he had been messaging me and I haven't received any of them and he has a Google pixel. Anyone else having these issues or know a fix?"

Most of the users who say they've been affected by the issue say they use a Galaxy S8 or S8+, but others have reported experiencing the same problem on other Samsung handsets, like the Galaxy S7 Edge.

We’ve contacted Samsung for comment, and will update this story when we hear back from the company.

The Galaxy S8, which came out earlier this year, is one of the most attractive and feature-rich smartphones on the market.