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DD-WRT does work on version 2.1 !!

(also does work on v3 and v4, go to the respective thread on the forum for more details)

  • TP-LINK TP-WR740N version 2.1
  • Firmware Version: 3.12.4 Build 100910 Rel.57694n
  • Hardware Version: WR740N v1/v2 00000000
  • wifi chip Atheros AR9285-AL1A
  • non-detachable antenna
  • cheap: 25 Euro

Picture of Atheros chip AR9285-AL1A

Picture of backside (underneath) with barcode and router version (2.1)

Picture of the whole circuit board. other chips are the same as on this picture

Picture of the whole unit.

Feel free do download the photos to your server. I took them and they are free to copy. Email me User:Y23 if tinypic biffed them

Version 1.1 uses the same TP-LINK firmware, see here.

The prescribed dd-wrt v24 preSP2 beta build 15778 for TP-Link WR740N v1.0 Firmware: Special image for initial flashing factory-to-ddwrt.bin 2010-12-13 3,75 MB works!

[edit] Limitation/Bugs

as of v4:

-LAN client cannot see each other (possibly fixed on latest build)

-No TX rate increase

-No 40Mhz channel (means no 150mbps advertised speex, capped to 20mhz which is at 72 Mbps)

[edit] howto

In TP-Link webinterface I did FACTORY RESET

In TP-Link webinterface (now I upgraded firmware to factory-to-ddwrt.bin

then I was able to log into dd-wrt ( I have to set a login-name and password.

Then I upgraded (Administration > Firmware upgrade) to tl-wr740n-webflash.bin

BUT ALAS .... with Firefox it DID NOT WORK.

So I used IE6 and voila! bingo! Danke BrainSlayer! AWESOME JOB! I am stoked!

Screenshot of dd-wrt on WR-740N v 2.1
Screenshot of dd-wrt on WR-740N v 2.1