I recently noticed that my mobile data isn't working on my phone, which is a Samsung Galaxy A12 running Android 11. I have an unlimited data plan, but I'm getting a notification that I need to sign into a network. Before this started happening, I tried several troubleshooting steps: I restarted my phone, cleaned the SIM card, toggled airplane mode, reset the network settings, and checked for software updates, but nothing has worked so far. I haven't tested my SIM in another phone yet because I can't find my old one, and my family's phones are locked to a different carrier. I can still send texts, but when I try to make a call, I get a message saying that I will be connected to customer service. I'm considering a factory reset as a last resort, but I'd prefer to avoid it if possible.
2 Answers
I actually had a similar issue before. When I clicked on the network sign-in, it directed me to a page for authentication. You should check if you still have good standing with your account, especially since you're using a SafeLink SIM now instead of At&T. If Wi-Fi calling isn't working either, that could be a sign your network settings are mixed up. I recommend getting in touch with customer service for a deeper dive into the issue.
It sounds like your carrier might require you to authenticate with their network. When you click the 'sign into network' notification, does it take you to a webpage from your provider? If that page doesn't load, try to switch to Wi-Fi first. Also, it's a good idea to log into your account online over Wi-Fi to ensure everything is in order. If you have Wi-Fi calling enabled, consider disabling that; sometimes it can interfere. If none of this works, contacting customer service might be your best option.
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