can't upgrade WZR-HP-AG300H

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Joined: 30 Aug 2012
Posts: 1

PostPosted: Fri Dec 17, 2021 10:13    Post subject: can't upgrade WZR-HP-AG300H Reply with quote
I have:
Router ModelBuffalo WZR-HP-AG300H
Firmware VersionDD-WRT v24-sp2 (06/23/14) std - build 24461
Kernel VersionLinux 3.10.44 #10975 Mon Jun 23 03:40:24 CEST 2014 mips

I'm trying to upgrade this router using WEB UI firmware upgrade option but router always says that upgrade was successful and after restart an old software is being loaded.

I was trying many different files from Buffalo site and from DDWRT but the effect is always the same. How can I upgrade this router?

Joined: 18 Mar 2014
Posts: 9601
Location: Netherlands

PostPosted: Fri Dec 17, 2021 10:17    Post subject: Reply with quote
Unfortunately you are posting in the wrong forum

The General Questions forum is not for asking router specific questions, see the second announcement in that forum: STOP!-READ FIRST: This area is NOT for router help! READ!

See the forum guidelines with helpful pointers about how to research your router, where and what firmware to download, where and how to post and many other helpful tips:

No problem as I will transfer this post to the appropriate forum. Smile

Routers:Netgear R7800, R6400v1, R6400v2, Linksys EA8500, EA6900 (XvortexCFE), E2000 (converted WRT320N), WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:
Install guide R7800/XR500:
Forum Guide Lines (important read):

Joined: 18 Nov 2015
Posts: 1744
Location: WCentral Indiana USA

PostPosted: Fri Dec 17, 2021 13:33    Post subject: Reply with quote
Have you tried a non chromium based browser such as
Pale Moon, Waterfox (3rd Gen 78 or Classic 56), Firefox ESR 78 Portable or Firefox ESR Legacy?

Command line upgrade always works for my WZR-HP-AG300H.

If you are still on Buffalo branded version of DD-WRT you will need to use the buffalo_to_dd-wrt file.

STUBBY DoT install guide----Forum Guide Lines (Please read!) --- How to get help the right way----Before asking for help - Read the forum guidelines AND Upgrade DD-WRT!
DD-WRT Developer/Maintainer

Joined: 31 Jul 2021
Posts: 783
Location: All over YOUR webs

PostPosted: Fri Dec 17, 2021 14:44    Post subject: Reply with quote
Make sure you use the correct file for upgrading via webif e.g. wzr-hp-ag300h-dd-wrt-webupgrade-MULTI.bin

Also, you are using a really old unsupported firmware build 24461 which you need to do nvram reset and reconfigure manually.

Your builds are here

Your best bet is

1 login via ssh/telnet
2 cd /tmp
3 run nvram reset
4 curl -O
5 write buffalo_wzr-hp-ag300h/wzr-hp-ag300h-dd-wrt-webupgrade-MULTI.bin linux

Upon success run reboot

If that doesnt work, look at your routers instructions to flash via TFTP and use this file buffalo_to_ddwrt_webflash-MULTI.bin

Take care.

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