Please provide more information so that the cause of your problem may be diagnosed.
Please restart your computer and allow 20 minutes for the system to run before uploading information required to help me investigate your problem. When examining Event Viewer log files many, not all, problems show in the period immediately after the computer has been booted.
This page contains the driver installation download for Realtek RTL8723BE Wireless LAN 802.11n PCI-E NIC in supported models (B5400 (20278)) that are running a supported operating system. Realtek RTL8723BE Wireless LAN 802.11n PCI-E NIC - Driver Download Updating your drivers with Driver Alert can help your computer in a number of ways. From adding new functionality and improving performance, to fixing a major bug. This package provides Realtek RTL8723AE Wireless LAN Driver and is supported on Vostro Notebook 5460 that are running following Windows Operating system: Vindows 7. To ensure the integrity of your download, please verify the checksum value.
Please provide a copy of your System Information file. To access your System Information file select the keyboard shortcut Win+R, type msinfo32 and click OK . Place the cursor on System Summary. Select File, Export and give the file a name noting where it is located. Click Save. Files in the txt file format are preferred.Do not place the cursor within the body of the report before exporting the file.The system creates a new System Information file each time system information is accessed. You need to allow a minute or two for the file to be fully populated before exporting a copy. Please upload the file to your OneDrive, share with everyone and post a link here. If the report is in a language other than English, please state the language.
Please upload to your OneDrive and share with everyone a copy of your System log filefrom your Event Viewer and post a link here. Please remove any earlier copies of the logs from your OneDrive.
Realtek Rtl8723be Wireless Lan 802.11n Driver
To access the System log select the keyboard shortcut Win+R, type eventvwr.msc and press the ENTER key. From the list in the left side of the window select Windows Logs and System. Place the cursor on System, select Action from the Menu and Save All Events as (the default evtx file type) and give the file a name. Do not provide filtered files. Do not place the cursor in the list of reports before selecting Action from the menu. Do not clear logs whilst you have a continuing problem.
Wireless Lan Vs Wifi
For help with OneDrive see paragraph 9.3: