| Firmware |
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- Please verify the hardware version of your device for the firmware version. Wrong firmware upgrade may damage your device and void the warranty.
- Do NOT turn off the power during upgrade.
- Do NOT upgrade the firmware through wireless connection unless the device only has wireless connection;
- It's recommended that users stop all Internet applications on the computer, or simply disconnect Internet line from the device before upgrade.
- Use decompression software such as WinZIP or WinRAR to extract the file you download before upgrade.
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| TL-WR740N_V4_130329 | | Published Date | 3/29/2013 |
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| Language | English |
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| File Size | 3.23 MB |
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| Operating System | Win2000/XP/Vista/7/8/Mac/Linux |
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| Modifications and Bug Fixes | - Improved web interface stability
- Fixed a bug that the 8th wireless client with power save enabled will cause the instable issue to wireless network.
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| Notes | For TL-WR740N V4.20 |
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| TL-WR740N_V4_130322 | | Published Date | 3/22/2013 |
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| Language | English |
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| File Size | 3.23 MB |
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| Operating System | Win2000/XP/2003/Vista/7/8/Mac/Linux |
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| Modifications and Bug Fixes | - Fixed the bug that failure of VLAN table creation will cause unit reboot
- Fixed some vulnerabilities and improved security
- Fixed the bug that invalid URL request to the web server will cause server hang up
- Improved wireless connection stability
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| Notes | For TL-WR740N V4.20 |
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| TL-WR740N_V4_130205 | | Published Date | 2/5/2013 |
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| Language | English |
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| File Size | 3.23 MB |
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| Operating System | Win2000/XP/2003/Vista/7/Mac/Linux |
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| Modifications and Bug Fixes | - Support multicast applications
- Fixed a bug when WAN connection type is Static IP, Default Gateway or Primary DNS is 0.0.0.0, configuration can be saved
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| Notes | For TL-WR740N(UN) V4 |
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Some official firmware of TP-LINK products can be replaced by the third party firmware such as DD-WRT. TP-LINK does not provide technical support and does not guarantee the performance and stability of third party firmware. Damage to the product as a result of using third party firmware will void the product's warranty.
