[Kortsen]

I just got a TL-WR740N in the hope of using it as a wireless bridge. It was in a bargain bin for $5 so WTF. Out of the box I enabled WDS and disabled DHCP and surveyed for my WiFi and it worked, except I missed a step and had a wide open AP. I reset it and added WPA2 and flashed the latest firmware and it stopped doing what I wanted. I flashed it with factory-to-ddwrt.bin from the dd-wrt database and followed a couple of tutorials and had no luck. Then I tried tl-wr740nv4-webflash.bin and had no better luck. Now I want to flash it back to stock and try again and it doesn't work. Me no dumb-dumb so I downloaded wr740nv4_en_3_17_0_up_boot(150105).bin (the newest firmware) from TP-Link before I started. But after using dd-wrt for a firmware 'upgrade' with factory reset selected it rebooted and came up with the dd-wrt prompt to set a username and password. I got an older firmware from TP-Link, wr740nv4_en_3_16_6_up_boot(130529).bin and tried again with the same results. Why does dd-wrt not flash it back with the mfr firmware?

[eshc78]

The router database is outdated.

Only use is for know is your router has been supported

Read the changelog for new dd-wrt firmware
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=279466

Firmware Download
ftp://ftp.dd-wrt.com/betas/

If you want downgrade to stock firmware you need revert files.
Search your router and version here.
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=85237

after revert at stock, update gradually your router at last oem firm

Not go e.g from 1.1 to 5.1, go from 1.1 to 2.2, from 2.2 to 3.0, until latest oem firmware.

[danymarc]

Second post rlindon quote here http://www.dd-wrt.com/phpBB2/viewtopic.php?t=263149&postdays=0&postorder=asc&start=285