2014-07-18

Reverting Buffalo WZR-1750DHP-EU from DD-WRT firmware to Stock (v2.22)

Just got myself a WZR-1750DHP from Amazon.

Tried the stock firmware, was quite impressed with the performance and features provided, only draw back was SSID2 only supports WEP encryption, and I do want WPA2 on SSID 2.

Was always a big fan of DD-WRT, decided to give it a try, flashed the following two images:
factory-to-dd-wrt.bin then
buffalo-wzr-1750dhp-webflash.bin.

Unfortunately the WAN performance was not very good at all, it's kind of limited to about 30MBps throughput, apparently hardware NAT was not enabled / support on DD-WRT firmwares.

No SSID2 vs slow internet, I've decided to go back to stock.



Procedure for going from DD-WRT back to Stock 2.22 firmware:

(1) Download 23709a (buffalo customised DD-WRT firmware) from Buffalo

(2) Extract the .zip downloaded from Buffalo, locate file wzr1750dhpd-v24sp2-23709a.bin, and update to router, selecting erase all settings.

(3) Download v2.22 firmware from Buffalo

(4) Extract the .zip, and locate file wzr_1750dhp_eu_222

(5) Update firmware from 23709a to EU 2.22. Be patient as the process did take some time, and router might restart several times.

Done, back to stock!

2 comments:

  1. hello can you please post the way to flash a wrz1750dhp-eu with the wrt firmware? i try the bufpy/otdpupypassword trick but the wrt firmware is refused with the commend "bad firmware" . its the same with wrt firmware or fuffalo 23709a. the wrz comes with 2.05. no way. i flash with 2.25 the same.. any idea?

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    Replies
    1. I'm afraid I don't have this router with me anymore, you will probably need a different version of "initial flash" image from dd-wrt.

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