• Too many devices may be connected. Disconnect some of them and try again.
• Restart the router, disable and re-enable Wi-Fi, or restart your phone, then try again.
• Set a static IP address by doing the following: Touch the hotspot name, go to Show advanced options > IP settings > Static, and set the parameters by referring to the settings on other connected phones.
• Open Settings, search for and access Reset network settings, then reset your network settings. (Note: This will delete all your Wi-Fi and Bluetooth connection records.)
• If the issue persists, back up your data and take your device and proof of purchase to an authorized Huawei Customer Service Center for assistance.

Related FAQ:

Unable to access the Internet after connecting my phone to a Wi-Fi network