Posted: Wed Dec 10, 2025 13:47 Post subject: New Build - 12/10/2025 - r63020
Welcome to Broadcom r63020 beta release thread for reporting, feedback to developers & community benefit.
Please do not flash builds until installation is understood, risks involved and device specificrecovery 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}' (httponly) or 'curl -O {file URL}' (http, https, ftp) 'write {file} linux' then 'reboot'.
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: stracetcpdump.
• 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.
Joined: 16 Nov 2015 Posts: 7065 Location: UK, London, just across the river..
Posted: Wed Dec 10, 2025 16:38 Post subject:
Router Model Netgear R7000
Firmware Version DD-WRT v3.0-r63020 std (12/10/25)
Kernel Version Linux 4.4.302-rt232-st70 #14715 SMP Wed Dec 10 07:19:58 +07 2025 armv7l
reset: No
status: Operational
mode: Gateway/from my signature
errors: None so far... _________________ Atheros
TP-Link WR1043NDv2 -DD-WRT 62606 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 -DD-WRT 63257 GTW/SmDNS/DoT,AD-Blk,Forced DNS,AP&Net Isolation,x2VLAN,Vanilla
Netgear R7800 --DD-WRT 62606 Gateway/DNSCryptv2,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla,VPN cli
Netgear R9000 --DD-WRT 62606 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Dynalink DL-WRX36-DDWRT 62606
Broadcom
Netgear R7000 --DD-WRT 63257 GTW/DNScrypt-proxy2/AD-Block,IPset Firewall,Forced DNS,x4VLAN,VPN cli
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Router/Version: Asus RT-N66U
Update method: WebUpgrade
File/Kernel: dd-wrt.v24-r63020_NEWD-2_K3.x-big-RT-N66U.trx / Linux 4.4.302-rt232-st70 #42398 Wed Dec 10 04:00:09 +07 2025 mips
Previous/Reset: 62966 / no
Mode/Status: Gateway, Open VPN Client / Up and running for 3:42 hours
CPU Temperature: WL0 46.0 °C (ambient temperature 20.0 °C)
Issues/Errors: Nothing significant
Thank you BS and gurus! _________________ Atheros
Netgear XR500 Nighthawk - DD-WRT 63257
Tp-Link TL-WDR4900 v1.3 - DD-WRT 53133
TP-Link WR1043ND v4 - DD-WRT 51838
TP-Link WR1043ND v2 - Gargoyle OS 1.13.0
TP-Link WR841ND v11 - DD-WRT 63257
Broadcom
Asus RT-AC88U - DD-WRT 63257
Asus RT-AC87U R - DD-WRT 63257
Asus RT-N66U - DD-WRT 63257
Linksys WRT54GL v1.1 - DD-WRT 54517M
Linksys WRT54GL v1.1 - FreshTomato 2023.4_MIPS_K26
Linksys WRT54GL v1.1 - Gargoyle OS 1.6.2
Posted: Thu Dec 11, 2025 9:43 Post subject: Linksys E2000
Router/Version: Linksys E2000
Update method: WebUpgrade
File/Kernel: DD-WRT v3.0-r63020 mega (12/10/25) / Linux 4.4.302-rt232-st70 #42402 Wed Dec 10 04:05:04 +07 2025 mips
Previous/Reset: r62966 / yes
Mode/Status: Gateway mode with PPPoE WAN, Dnsmasq client/server enabled, Wi-Fi 5GHz active, CTF enabled
CPU Temperature: WL0 51.0 °C
Issues/Errors:
- **CTF bug**: After upgrade, CTF only works properly if pressing *Save & Apply* multiple times in Setup.
- When CTF is active, throughput reaches ~300 Mbps.
- However, after rebooting the modem, CTF fails and throughput drops to ~40–45 Mbps.
- To restore full speed, the *Save & Apply* procedure must be repeated manually.
- This issue also occurs on previous firmware versions:
- "dd-wrt.v24-62966_NEWD-2_K3.x_mega-e2000.bin"
- "dd-wrt.v24-62890_NEWD-2_K3.x_mega-e2000.bin"
Posted: Thu Dec 11, 2025 10:15 Post subject: AC88U
Router/Version: Asus RT-AC88U
Update method: WebUpgrade
File/Kernel: asus_rt-ac88u-firmware.trx_r63020 std / Linux 4.4.302-rt232-st70 #14720 SMP Wed Dec 10 07:47:15 +07 2025 armv7l
Previous/Reset: r62966 / no
Mode/Status: Gateway, Open VPN Client / Up and running for 5:02 hours
CPU Temperature: CPU 77.1 °C / WL0 50.3 °C / WL1 48.3°C (ambient temperature 20.1 °C)
Issues/Errors: Nothing significant
If your router's light turns red, don't worry. Internet connection is ok.
Thank you BS and gurus! _________________ Atheros
Netgear XR500 Nighthawk - DD-WRT 63257
Tp-Link TL-WDR4900 v1.3 - DD-WRT 53133
TP-Link WR1043ND v4 - DD-WRT 51838
TP-Link WR1043ND v2 - Gargoyle OS 1.13.0
TP-Link WR841ND v11 - DD-WRT 63257
Broadcom
Asus RT-AC88U - DD-WRT 63257
Asus RT-AC87U R - DD-WRT 63257
Asus RT-N66U - DD-WRT 63257
Linksys WRT54GL v1.1 - DD-WRT 54517M
Linksys WRT54GL v1.1 - FreshTomato 2023.4_MIPS_K26
Linksys WRT54GL v1.1 - Gargoyle OS 1.6.2
Joined: 16 Nov 2015 Posts: 7065 Location: UK, London, just across the river..
Posted: Thu Dec 11, 2025 10:21 Post subject: Re: Linksys E2000
tuthanika wrote:
Issues/Errors:
- **CTF bug**: After upgrade, CTF only works properly if pressing *Save & Apply* multiple times in Setup.
- When CTF is active, throughput reaches ~300 Mbps.
- However, after rebooting the modem, CTF fails and throughput drops to ~40–45 Mbps.
- To restore full speed, the *Save & Apply* procedure must be repeated manually.....
Log in via CLI and issue this command....it will list you the nvram options to enable the CTF
than to enable ctf_fa settings use the set of those commands...kind of...
nvram set ctf_disable=0
nvram set ctf_fa_mode=1
nvram commit
reboot
Than on reboot those values should stay preserved...no need to use buggy GUI to activate this if so...
In general enabling those options either via GUI or CLI always requires a router reboot... _________________ Atheros
TP-Link WR1043NDv2 -DD-WRT 62606 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 -DD-WRT 63257 GTW/SmDNS/DoT,AD-Blk,Forced DNS,AP&Net Isolation,x2VLAN,Vanilla
Netgear R7800 --DD-WRT 62606 Gateway/DNSCryptv2,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla,VPN cli
Netgear R9000 --DD-WRT 62606 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Dynalink DL-WRX36-DDWRT 62606
Broadcom
Netgear R7000 --DD-WRT 63257 GTW/DNScrypt-proxy2/AD-Block,IPset Firewall,Forced DNS,x4VLAN,VPN cli
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Posted: Thu Dec 11, 2025 11:38 Post subject: Re: Linksys E2000
Alozaros wrote:
tuthanika wrote:
Issues/Errors:
- **CTF bug**: After upgrade, CTF only works properly if pressing *Save & Apply* multiple times in Setup.
- When CTF is active, throughput reaches ~300 Mbps.
- However, after rebooting the modem, CTF fails and throughput drops to ~40–45 Mbps.
- To restore full speed, the *Save & Apply* procedure must be repeated manually.....
Log in via CLI and issue this command....it will list you the nvram options to enable the CTF
than to enable ctf_fa settings use the set of those commands...kind of...
nvram set ctf_disable=0
nvram set ctf_fa_mode=1
nvram commit
reboot
Than on reboot those values should stay preserved...no need to use buggy GUI to activate this if so...
In general enabling those options either via GUI or CLI always requires a router reboot...
I have tested this carefully on my Linksys E2000.
When configuring PPPoE and pressing Save, the router stays in SFE mode. If I check via SSH:
nvram show | grep ctf
size: 19798 bytes (45738 left)
ctf_disable=1
has_ctf=1
Then I run:
nvram set ctf_disable=0
nvram set ctf_fa_mode=1
nvram commit
but in the GUI it still shows SFE, not switching to CTF. After reboot, checking again shows:
nvram show | grep ctf
ctf_disable=1
nvram set ctf_fa_mode=1
has_ctf=1
So the values are not preserved, and I must go into the GUI and manually set CTF.
However, when PPPoE connects, the modem immediately reboots itself. Even using the old workaround (Save & Apply multiple times) does not help anymore — the only way is to reset and reconfigure everything from scratch.
Joined: 16 Nov 2015 Posts: 7065 Location: UK, London, just across the river..
Posted: Thu Dec 11, 2025 13:12 Post subject: Re: Linksys E2000
tuthanika wrote:
When configuring PPPoE and pressing Save, the router stays in SFE mode. If I check via SSH:
nvram show | grep ctf
size: 19798 bytes (45738 left)
ctf_disable=1
has_ctf=1
Then I run:
nvram set ctf_disable=0
nvram set ctf_fa_mode=1
nvram commit
but in the GUI it still shows SFE, not switching to CTF. After reboot, checking again shows:
nvram show | grep ctf
ctf_disable=1
nvram set ctf_fa_mode=1
has_ctf=1
So the values are not preserved, and I must go into the GUI and manually set CTF.
However, when PPPoE connects, the modem immediately reboots itself. Even using the old workaround (Save & Apply multiple times) does not help anymore — the only way is to reset and reconfigure everything from scratch.
but still I need to press Save & Apply several times before throughput recovers to ~300 Mbps. Otherwise, speed is stuck around 40–45 Mbps.
So the CLI method does not fix the issue
yep your router is old and doesn't have FA, so only CTF... is avalable and
this setting means nothing then...so its not needed..
nvram set ctf_fa_mode=1
# _________________ Atheros
TP-Link WR1043NDv2 -DD-WRT 62606 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 -DD-WRT 63257 GTW/SmDNS/DoT,AD-Blk,Forced DNS,AP&Net Isolation,x2VLAN,Vanilla
Netgear R7800 --DD-WRT 62606 Gateway/DNSCryptv2,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla,VPN cli
Netgear R9000 --DD-WRT 62606 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Dynalink DL-WRX36-DDWRT 62606
Broadcom
Netgear R7000 --DD-WRT 63257 GTW/DNScrypt-proxy2/AD-Block,IPset Firewall,Forced DNS,x4VLAN,VPN cli
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Joined: 16 Mar 2019 Posts: 422 Location: Szczecin, Poland EU
Posted: Thu Dec 11, 2025 13:59 Post subject:
Router: Linksys EA6400
Kernel: Linux 4.4.302-rt232-st70 #14715 SMP Wed Dec 10 07:19:58 +07 2025 armv7l
Previous/Reset: original r62966 build / no reset, update via GUI
Mode: Internet Gateway, WIFI 5GHz AP, smartdns with DoH, iptables firewall, SshD
Status: working with issue
Issues: Smartdns working unstable, temporarly goes crash and We must restart it manually. I'm attach syslogs.
Uptime: more than 12h
1. Smartdns working on this build with problems. Going crash with error on logs. The next is problem with restart it and I'm manually try restart that service till next suddenly crash.
Dec 11 13:56:59.788 Myrouter user.err smartdns: send http2 stream failed.
Dec 11 13:56:59.789 Myrouter user.emerg smartdns: process exit with signal 11, code = 1, errno = 0, pid = 1990170344, self = 5064, pc = 0x45394, addr = 0x769f96e8, build(Dec 10 2025 07:23:01 arm)
Jan 1 01:00:11.783 Myrouter kern.emerg kernel: [ 0.269606] Asus-RT-AC68U init
2. Why is Asus-RT-AC68U init when I have the Linksys EA6400 ?
3. Version of Smartdns tool: smartdns 1.20251210-0723
4. My smartdns config:
Prefetch domain YES
Serve expired NO
Use additional servers only YES
Posted: Thu Dec 11, 2025 14:45 Post subject: Re: Linksys E2000
Alozaros wrote:
yep your router is old and doesn't have FA, so only CTF... is avalable and
this setting means nothing then...so its not needed..
nvram set ctf_fa_mode=1
#
Yes, understood, it's old. However, with CTF enabled I can still reach around ~300 Mbps WAN speed, which is quite good for this hardware. That said, I guess it is time for me to consider upgrading to a newer router to avoid these limitations.
Joined: 16 Mar 2019 Posts: 422 Location: Szczecin, Poland EU
Posted: Thu Dec 11, 2025 15:15 Post subject:
On the EA6400 I have more than 600 mbit/s on WAN / LAN ports. On E2000 is rather hardware limit. You can try to force gigabit mode in switch configuration and disable Auto Negotiation feature. On device you can turn off useless tools. Look at firewall. It can make sources utilisation.
Joined: 18 Mar 2014 Posts: 13880 Location: Netherlands
Posted: Thu Dec 11, 2025 15:32 Post subject:
thommy181 wrote:
You can try to force gigabit mode in switch configuration and disable Auto Negotiation feature. On device you can turn off useless tools. Look at firewall. It can make sources utilisation.
That is just nonsense
The switch will do 1 GB/s just fine but going from LAN <> WAN the CPU comes into play, CTF provides limited hardware acceleration and if you have FA it provides even more hardware acceleration, but FA is only available on Broadcom Northstar targets (mostly the routers with dual core Arm CPU running K4.4.)
300 Mb/s is actually very good with that old hardware and a single CPU running at 354 MHz
You can try to force gigabit mode in switch configuration and disable Auto Negotiation feature. On device you can turn off useless tools. Look at firewall. It can make sources utilisation.
That is just nonsense
The switch will do 1 GB/s just fine but going from LAN <> WAN the CPU comes into play, CTF provides limited hardware acceleration and if you have FA it provides even more hardware acceleration, but FA is only available on Broadcom Northstar targets (mostly the routers with dual core Arm CPU running K4.4.)
300 Mb/s is actually very good with that old hardware and a single CPU running at 354 MHz
But it is probably time to get a better router
Lol, with ~300 Mbps WAN speed the E2000 is already maxed out, when I run IDM downloads the CPU hits 100%. It’s good enough for this old box, but clearly I’ll need another device to really use my 1 Gbps line.
