What Wi-Fi Protocols Does My Phone Support; Sometimes I Cannot Open Web Pages Over A Wi-Fi Connection. Why; I Have Turned On Wi-Fi On My Phone, But It Cannot Detect Signals From Wi-Fi Hotspots. What Can I Do - Huawei ALE-L21 Manual

HUAWEI ALE-L21/L02/L23 Smartphone FAQs (Applicable Outside China)

2.2.2 What Wi-Fi protocols does my phone support?

Your phone supports 802.11b/g/n.
2.2.3 Sometimes I cannot open web pages over a Wi-Fi connection.
Why?
Possible causes are as follows:
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2.2.4 I have turned on Wi-Fi on my phone, but it cannot detect
signals from Wi-Fi hotspots. What can I do?
On a device other than your phone, turn on Wi-Fi. If the device also cannot detect any Wi-Fi
signals, verify that your router is functioning correctly. If the device can detect Wi-Fi signals,
do as follows:
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Issue 01 (2015-03-30)
The x digital subscriber line (xDSL) connection failed. If the hotspot (such as a wireless
router) your phone connects to accesses the Internet through xDSL but the xDSL
connection fails, the Internet connection is unavailable. Check that the xDSL connection
is working properly and try again.
A domain name service (DNS) problem occurred. For example, if you cannot open web
pages but can access App Center, the DNS is not working properly. In this case, on the
screen where a static IP address can be set, modify DNS settings.
The websites that the Wi-Fi hotspot can access are restricted. In this case, your phone
cannot be used to browse web pages at those websites.
Check that the wireless router's service set identifier (SSID) is not hidden.
Restart the Wi-Fi function on your phone.
Restart your phone.
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