I am using WhatsApp Business for a long time and I have firstly seen such a problem. The app is not delivering messages at all. Even 1 day later too. I am changing connection several times after the problem occurred. I have tried several type of connections but it didn’t help me. Please help me to fix it.
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There can be several reasons of this problem and several solutions really. It can also occur because of the conflict of two messengers on your Android phone. Let’s see the solutions for this problem.
If you have any messenger application which you haven’t update it, please do it. It will help you to fix the problem if there is any conflict. I also recommend you to delete applications which you don’t use on your phone.
You will also need to check applications which are running background. If there are too much applications which are running at background, they will keep your connection busy. You can check those apps from apps. I also recommend you to use a cleaner app. If you have a phone with one of those new Android versions, there are generally good optimize tools for devices.
Check if there is any update for your device. If there is any, please update it. You also need to ensure that you are using the latest version of WhatsApp.
Check your networks on your phone and see if they are correct. You will need to go to settings > connections > mobile networks > Access points names for this. Check your connection on internet and see the speed of your connection. If your internet speed is poor, you will need to contact to your service provider.