Upgrade failing WRT1900ACS V2

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The1nonly1
DD-WRT Novice


Joined: 12 Jun 2019
Posts: 8

PostPosted: Wed Jun 12, 2019 15:03    Post subject: Upgrade failing WRT1900ACS V2 Reply with quote
Hey all, new to posting here but always been my guide when I was stuck with an issue.

I'm currently running r34311 on a Linksys WRT1900ACS V2 (had to check online but on the bottom of the router it does say V2) and wanting to upgrade to the latest version. I've read the sticky about upgrading, however when I flash the file, it always comes back saying upgrade failed. I've seen a post mentioning that the file it too big >35mb but unsure if this is the exact reason. Can anyone point me in the right direction?

DD-WRT is currently on partition 2 and I successfully switched back to the original linksys partition today and then back to DD-WRT to make sure I had a backup.
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ddkt
DD-WRT Novice


Joined: 17 Mar 2016
Posts: 41

PostPosted: Thu Jun 13, 2019 9:19    Post subject: Reply with quote
You're correct. The files are too big for the stock FW to install. You need to first install an older version that's > 32MB, then upgrade.
Ah-Pin-Kor
DD-WRT User


Joined: 19 Sep 2015
Posts: 267

PostPosted: Thu Jun 13, 2019 9:52    Post subject: Reply with quote
The >32MB flash size problem should only be seen when flashing from stock to dd-wrt.
Once running dd-wrt, you can flash to the latest builds with bigger sizes (latest around 37MB). I've gone from 34311 to the recent builds a few times.
Only thing I can suggest is try using another browser to flash (don't use chrome). I've used firefox successfully.

_________________

Netgear R7800 kongpro 19.07 20190919 || Netgear R7000 36070M kongac (Client Bridge=5GHz, AP=2.4GHz with bridged VAP)
Linksys WRT32X davidc502 OpenWrt || Linksys WRT1200ACv1 Gargoyle 1.11.x
Linksys WRT1900ACSv2 dd-wrt 39956
The1nonly1
DD-WRT Novice


Joined: 12 Jun 2019
Posts: 8

PostPosted: Thu Jun 13, 2019 12:37    Post subject: Reply with quote
Thanks, I'll try Firefox to see if that works.
The1nonly1
DD-WRT Novice


Joined: 12 Jun 2019
Posts: 8

PostPosted: Thu Jun 13, 2019 13:23    Post subject: Reply with quote
Worked first time in Firefox. I'll remember this for next time.
SurprisedItWorks
DD-WRT User


Joined: 04 Aug 2018
Posts: 443
Location: Appalachian mountains, USA

PostPosted: Fri Jun 14, 2019 17:53    Post subject: Reply with quote
I've installed from factory to 38159 successfully several times in your model router, so I know that release is OK for the smaller partition (number 2). From there I've webflashed without incident to 39144.
_________________
Six of the Linksys WRT1900ACSv2 on r38159, r39144, r40009, and r40784. On various:
VLANs, client-mode travel router, two DNSCrypt servers (incl Quad9), multiple VAPs, USB/NAS, QoS, OpenVPN client/PBR (old=NordVPN, new=AirVPN).
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