Install Problem WRT1900ACS v1

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Gravel
DD-WRT Novice


Joined: 14 Sep 2020
Posts: 4

PostPosted: Mon Sep 14, 2020 7:19    Post subject: Install Problem WRT1900ACS v1 Reply with quote
I have successfully installed DD-WRT on several older routers in the past, but this one has failed.

Hardware: Linksys WRT1900ACS v1 (confirmed on Linksys website)

I've tried:

1. Reading the posts from spuriousoffspring on installation and Cliff notes for Marvel MVEBU hw

2. Installing the r44048 from this link: ftp://ftp.dd-wrt.com/betas/2020/08-02-2020-r44048/linksys-wrt1900acs/

3. Even tried installing the old version listed on the database r40559

4. All files are the Factory-to-DDWRT.bin versions

5. I'm using a LAN cable direct from the PC to the ethernet port 1, 2, 3, or 4 - NO WAN connection to the cable modem during install/reboot

6. I did not do the 30-30-30 hard reset, simply the 10 sec reset button hold down

The result in all cases - the router boots up the old factory GUI every. time. Any thoughts on what issue I am facing here?
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blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 1604

PostPosted: Mon Sep 14, 2020 7:37    Post subject: Reply with quote
Stock Linksys firmware has an upgrade file size limitation somewhere around 32MB.

Here is the first of 2018, no idea if it's a good build or not but it has been used in the past as a stepping stone.

If you want a known good build from that time period I know ad19 uses r35681. r40009 is another, but it's probably too big.

Then you should be able to webflash upgrade to a recent build from the dd-wrt web gui (keep "don't reset" dropdown selected).

After confirming a successful flash and boot into r40448, telnet "nvram erase && reboot" or hold reset button for 10 seconds.
Eyerex
DD-WRT User


Joined: 11 Feb 2016
Posts: 194
Location: South London

PostPosted: Mon Sep 14, 2020 14:45    Post subject: Reply with quote
You may need to go back to 2018/01-07-2018-r34411/ ftp://ftp.dd-wrt.com/betas/2018/01-07-2018-r34411/linksys-wrt1900acs/ then do an update to say version r44048

Don't use any of the newer versions as they have WiFi problems

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| Netgear Nighthawk X4S R7800 | Linksys WRT1900ACS V1 | Huawei Echolife HG612 3B |
Gravel
DD-WRT Novice


Joined: 14 Sep 2020
Posts: 4

PostPosted: Mon Sep 14, 2020 15:33    Post subject: Thank You! Reply with quote
Thank you BLKT! That worked Marvel-ously!
Gravel
DD-WRT Novice


Joined: 14 Sep 2020
Posts: 4

PostPosted: Mon Sep 14, 2020 16:48    Post subject: Reply with quote
[quote="Eyerex"]You may need to go back to 2018/01-07-2018-r34411/ ftp://ftp.dd-wrt.com/betas/2018/01-07-2018-r34411/linksys-wrt1900acs/ then do an update to say version r44048

Don't use any of the newer versions as they have WiFi problems[/quote]

I opted for r44048. So far no problems with wireless mixed for both bands. Is there something I should watch out for Eyerex?
msoengineer
DD-WRT Guru


Joined: 21 Jan 2017
Posts: 1352
Location: Illinois Moderator

PostPosted: Mon Sep 14, 2020 16:49    Post subject: Reply with quote
That's the last known "stable" beta build that seems to provide the best user experience of up-time and wifi signal.
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Gravel
DD-WRT Novice


Joined: 14 Sep 2020
Posts: 4

PostPosted: Mon Sep 14, 2020 17:09    Post subject: Reply with quote
Got it! Thank you all for your help!
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 1604

PostPosted: Mon Sep 14, 2020 17:35    Post subject: Reply with quote
To clarify, Eyerex recommended the same "stepping stone" firmware to upgrade from factory stock Linksys web interface.

The same file only ftp instead of http, r34411 is the first build of 2018.

Watch the build threads very carefully before even considering upgrading in the future.

For now you will see many who fall back to r44048.
Eyerex
DD-WRT User


Joined: 11 Feb 2016
Posts: 194
Location: South London

PostPosted: Tue Sep 15, 2020 10:35    Post subject: Reply with quote
Gravel wrote:
Eyerex wrote:
You may need to go back to 2018/01-07-2018-r34411/ ftp://ftp.dd-wrt.com/betas/2018/01-07-2018-r34411/linksys-wrt1900acs/ then do an update to say version r44048

Don't use any of the newer versions as they have WiFi problems


I opted for r44048. So far no problems with wireless mixed for both bands. Is there something I should watch out for Eyerex?


The last two versions for me r44340 and r44251 on my WRT1900ACS V1 i can't get my iPad gen2, iPhone 7+, Roku 3 and FireCube 2 to connect to the WiFi 2.4 or 5ghz

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