[blkt]

Welcome to Marvell r63391 beta release thread for reporting, feedback to developers and community benefit.
Please do not flash builds until installation is understood, risks involved and device specific recovery methods.
Avoid discussions, create threads for questions, general problems or use search; this thread is not for support.
List router model & version or revision, operating & wireless modes & exact filename/firmware image flashed.

CLI Flash: 'cd /tmp' then 'wget {file URL}' (http only) or 'curl -O {file URL}' (http, https, ftp) 'write {file} linux' then 'reboot'.

Downloads: HTTPS, FTP

Trac SVN: repository since last build r63355 (mirror)

• OpenVPN 2.6.17: Changelog, Guides, Server, PBR, DNS, Kill Switch, Watchdog, Reverse PBR, Client, Multiple, tips, scripts.
• WireGuard 1.0.20211208/Tools: Changelog, Guides, Client, Server, Adv, PBR, KS, tips, scripts. Thanks BS egc & eibgrad!

Notes: ...
r61542 r61557 r61613 r61648 r61711 r61745 r61848 r61915 r61920 r61954 r61970 r61981 r62032 r62036 r62104 r62157
r62170 r62192 r62240 r62268 r62324 r62365 r62374 r62418 r62460 r62508 r62540 r62606 r62778 r62890 r62966 r63020
r63093 r63123 r63230 r63257 r63295 r63355 r63391

Issues, observations, and/or workarounds reported:
• WebUI: Clear history or use a portable. Temporary cache bypass: Ctrl+F5, Cmd+Shift+R or new private window/incognito.
• Please report findings with steps needed to reproduce, configuration, clients, output, logs and important information below!

Important:
• Detail issues & relevant configs, logs: syslog klog 'dmesg' 'cat /tmp/var/log/messages' nvram set console_debug=1, serial.
• Firewall NAT: 'iptables -vnL' 'iptables -t nat -vnL' 'iptables -t mangle -vnL' & 'cat /tmp/.ipt'. Debug Analyze: strace tcpdump.
• Gremlins: reboot. cold boot. Reset & reconfigure not restore backup. Search Trac & discuss in forum before opening tickets.
• Include operating & wireless modes (e.g. Gateway, Router, AP, SB, WDS, Mesh) and applicable configurations to reproduce.

Example Template:

[WENED]

WRT1900ac

Upgrade appears to hang and requires hard reboot to access.

No WiFi

ubootenv command gives error "fopen('/dev/mtdblock/1','r') fail. [No such file or directory]"

Last known good update was 62540

Update works fine on 3200

[Rickers]

I figured out a few things for 1900ACv1.

Wired clients can be made to work:
1. Disable Shortcut Forwarding Engine (SFE).
2. Set DNS to 8.8.8.8
3. Uncheck 'Use dnsmasq for DNS'. dnsmasq keeps crashing on startup so disable it.
4. Check 'Recursive DNS Resolving (Unbound)'. Appears to be necessary for this work-around.

Reboot and wired clients will work, at a reduced throughput for me. Works, but not really usable.

It's possible to SSH in:

Enable SSH.
"ssh root@192.168.1.1" gives an error "PTY allocation request failed on channel 0 shell request failed on channel 0".
I googled the error and found a solution: "ssh root@192.168.1.1 /bin/sh -i" will let you get a command prompt. Note that the term isn't set up properly so things like vi don't work right.
However, you can poke around. The most obvious problem is that the /dev directory is missing a lot of items, most notably, the 'mtd' and 'mtdblock' directories which cause the boot environment to be unavailable.

[MBehr]

Router/Version: WRT1900ACv2
File/Kernel: DD-WRT v3.0-r63391 std (01/17/26)
Previous/Reset: none
Mode/Status: AP
Issues/Errors: none

[kernel-panic69]

@WENED, Rickers: Reports forwarded.

[niccmann]

Upgraded a wrt3200acm to this build from a very old one (2020).

The upgrade made "apt get update" so slow it was almost unusable. It also broke Tor in my LAN. I had to disable SFE for everything to work again.

[marcus83]

Router/Version: WRT3200ACM
File/Kernel: DD-WRT v3.0-r63390 std (01/17/26)
Previous/Reset: none
Mode/Status: AP
Issues/Errors: none, *** but identified as (build 63390)***

[PavelVD]

Router: Linksys WRT1900ACSv2
Firmware: DD-WRT v3.0-r63390 std (01/17/26) from r58389.
Kernel: Linux 6.1.161-rc1-rt28 #323 SMP Sat Jan 17 13:07:51 +07 2026 armv7l
Reset: No.
Mode/Status: Ignore WAN DNS; SFE Disable; Use Dnsmasq & SmartDNS Resolve.
Wi-Fi: wlan0 - AP,AC/N-Mix,VHT80; wlan1 - AP,N-Only,HT40.
USB Storage Support via USB 3.0: --- /dev/sda - Block device, size 3.639 TiB, Ext4, with two partitions: one mounted in /jffs, the second in /opt.
NAS: Samba Protocol 2.10\3.11; NFS Server - Enable;
Issues/Errors: Haven't noticed yet.
Please note that the router shows firmware r63390 but not r63391.
I noticed that the firmware no longer contains /opt/bin/udpxy.