DD-WRT:

1. Download DD-WRT K2.6 firmware (dd-wrt.v24-30880_NEWD-2_K2.6_mini-e4200.bin, dd-wrt.v24-30880_NEWD-2_K2.6_mega-nv60k.bin) from below link:

 http://ddwrt.stevejenkins.com/builds/30880/

detail refer to: https://www.stevejenkins.com/blog/2013/01/my-cisco-linksys-e4200-dd-wrt-settings-for-max-speed/

2. Apply 30-30-30 rule.

3. Upgrade frimware to K.26 mini version.

4. Reboot router then apply 30-30-30 rule one more time.

5. Upgrade to K.26 mega.

Tomato:

1. 下載最新版的Toastman Tomato firmware:

    http://www.4shared.com/dir/v1BuINP3/Toastman_Builds.html

    無VLAN版功能最齊全的是 RT-N-VPN-NOCAT

    功能最齊全的是 RT-N-VLAN-VPN-NOCAT

    Toastman 版本發布: http://www.linksysinfo.org/index.php?threads/toastman-releases.36106/

2. 清除E4200的所有設定(先把目前的設定記錄下來): 開機狀態下按住reset按鈕10秒鐘.

    預設的ip會改回192.168.1.1, user: admin, password: admin

3. 網路線接到 LAN port 連到設定畫面, 到Administration, Firmware Upgrade 作韌體升級.

    看到螢幕出現: "A system reboot is in progress and may take up to 80 seconds." 時按下 繼續

4. 升級完成後,等待5分鐘後連到E4200, 到Administration, Configuration, Restore Default Configuration, 選"Erase all data in NVRAM memory (thorough)".

5. 回到設定畫面後, 到Basic, 在LAN設定裡的DHCP下方按Disable來打開DHCP.

6. Wirelss 安全設定: WPA2 Personal, AES.

技術規格查詢:

http://wikidevi.com/wiki/Main_Page

http://www.dd-wrt.com/wiki/index.php/Supported_Devices

http://www.dd-wrt.com/site/support/router-database