New Build - 11/18/2021 - r47656

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Joined: 20 Jan 2019
Posts: 3897

PostPosted: Thu Nov 18, 2021 8:20    Post subject: New Build - 11/18/2021 - r47656 Reply with quote
[WARNING]: This thread is only for feedback on this beta release for developers and the community's benefit.
DO NOT flash this beta release unless you understand the risks involved and device specific recovery methods.
Avoid discussions! Create threads for questions, general problems or use search; this thread is not for support.
Please list router model & revision, operating & wireless mode(s) and exact filename/firmware image flashed.

Downloads: (DD-WRT website) HTTPS & FTP (try another if a link does not work)

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

Repository: Trac SVN changelog since last build r47644 (GitHub mirror)

OpenVPN 2.5.4: Guides, Server, PBR, Reverse PBR, Client (see second post), Kill Switch, update tips, scripts and more.
WireGuard 1.0.20210606/Tools: Changelog, Guides, Client, Server, Advanced, PBR, KS, tips and scripts. Thanks BS & egc!
• CVE-2019-14899 VPN fix (applicability depends on VPN setup) and GUI toggle since r41813.
In-kernel Samba ksmbd 3.4.2+: default min/max versions changed. • WSD updateANTFS/NTFS3 kernel mode driver+++
CVE-2020-26147, CVE-2020-24586, CVE-2020-24587 & CVE-2020-24588 (Fragattack) fixed.
• "Assign WAN port to Switch" feature removed; likely no longer required. • MAC Filtering within WebUI fixed (47184-47205).
• Sputnik Agent removed. • "Ignore WAN DNS" also ignores WAN domain. Milkfish removed.
New DD-WRT inspired themes conversion by the-joker & BrainSlayer, micro devices excluded.

• 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!

• For issues provide applicable info: 'dmesg', 'cat /tmp/var/log/messages', syslog, klog, serial, strace, tcpdump, wireshark etc.
• Any firewall NAT or WAN issues, show output: 'iptables -vnL', 'iptables -t nat -vnL', 'iptables -t mangle -vnL' and /tmp/.ipt file.
• Search Trac tickets & discuss in forum before opening. Before reporting reset & manually set up, not restore from a backup.
• Please include operating & wireless modes (e.g. Gateway, Router, AP, CB, WDS, Mesh) & relevant configuration information.

Example Template:
[b]Router/Version: [/b]
[b]File/Kernel: [/b]
[b]Previous/Reset: [/b]
[b]Mode/Status: [/b]
[b]Issues/Errors: [/b]

Joined: 08 Oct 2015
Posts: 189

PostPosted: Fri Nov 19, 2021 0:56    Post subject: Reply with quote
Router/Version: WRT1900ACSv1 / DD-WRT v3.0-r47656 std (11/18/21)
File/Kernel: CLI webflash / Linux 4.9.290 #2921 SMP Thu Nov 18 01:52:11 +07 2021 armv7l
Previous/Reset: r47608 / No
Mode/Status: Gateway, OpenVPN Client, FreeRADIUS Server, VLANs, VAPs, WPA3 / Uptime 50 minutes
Issues/Errors: The first 20 minutes looked brilliant, but then serious random slowdowns began around minute 23 and I'm not sure why (e.g., down to 1% or less download speed about half of the time, and down to 1% or less upload speed about one quarter of the time). I played with various settings, mostly dns so far, but nothing conclusive yet. Log attached.

EDIT: After 19 hours up and a bit more testing, the intermittent 1% throughput issue didn't seem to be DNS, Wireless, CPU usage or anything else obvious. It might still be OpenVPN, perhaps even my provider (despite indistinguishable results through various of their servers). I've now got about 33% of normal throughput (seemingly random, but possibly related to switching from tcp to udp), which is good enough for me to wait it out to see if anything else improves over the weekend. I haven't been able to test OpenVPN Client definitively because disabling it in the GUI seems to leave me with no usable connection (and I'm not ready to reboot the router just yet). I tried WAN release/renew to no avail, but reenabling the OpenVPN Client does get the sluggish connection back. I must be overlooking something...

My DD-WRT Routers:
Linksys WRT1900ACS - Marvell (2x): r48646
Netgear R7000 - Broadcom (3x): r47720
Netgear R9000 - Atheros (1x): r47608
PC x86-64 VM - Atheros (1x): r46316
Linksys WRT54G/GS - Broadcom (4x): r44715

Last edited by o2bad455 on Fri Nov 19, 2021 19:51; edited 1 time in total

Joined: 18 Feb 2019
Posts: 159

PostPosted: Fri Nov 19, 2021 10:18    Post subject: Reply with quote
Router/Version: WRT3200ACM V1
File/Kernel: ddwrt-linksys-wrt3200acm-webflash.bin / r47656
Previous/Reset: r47644
Mode/Status: Router/AP with DNSSEC
Issues/Errors: None so far. I'll update if there's any issues going on, but it seems pretty snappy. Syslog and Klog are clean.

Router: Linksys WRT3200ACM WLAN0 and 1 have same SSID
88W8964 802.11ac WLAN0 Mode AP VHT80 80MHz Mixed Mode Channel and Extension Channel Auto Extension LL-6
88W8964 802.11ac WLAN1 Mode AP 20 MHz Mixed Mode Channel Auto
SD8887 802.11ac disabled but visible on GUI and CLI
TX Power 18 dBm
Antenna Gain 0 dBi
U-APSD (Automatic Power Save)Enabled 
Protection Mode None
RTS Threshold Disabled
Short Preamble Disabled 
Short GI Enabled
Single User Beamforming Enabled
Multi User Beamforming Enabled 
AP Isolation Disabled
Beacon Interval 100
DTIM Interval 2
WMM Support Enabled 
Radar Detection Disabled 
ScanList default
Sensitivity Range (ACK Timing) 500 (Default: 500 meters)
Max Associated Clients 256 (Default: 256 Clients)
Minimum Signal for authenticate -128
Minimum Signal for connection -128
Poll Time for signal lookup 10
Amount of allowed low signals 3
Wireless security is WPA2 Personal CCMP-128 only
QAM256 is on
DD-WRT Novice

Joined: 12 Nov 2021
Posts: 6

PostPosted: Sun Nov 21, 2021 21:22    Post subject: Reply with quote
Router/Version: WRT1900ACS / V2
File/Kernel: ddwrt-linksys-wrt1900acsv2-webflash / Linux 4.9.288 #2917 SMP Fri Nov 5 05:28:45 +07 2021 armv7l
Previous/Reset: r41586 / No
Mode/Status: Gateway
Issues/Errors: The TLS Key under Services -> VPN -> OpenVPN client gets truncated every type there is an attempt to save the page. I had to use nvram set openvpncl_tlsauth="****" to get it to work again.
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