Joined: 16 Nov 2015 Posts: 7112 Location: UK, London, just across the river..
Posted: Wed Feb 04, 2026 7:49 Post subject:
i dont have this issue..but i suspect a user error/ bad set up
we need to know what are your general DNS settings and ways to reproduce the error, logs and ect.
otherwise the help will be limited to random shots and guessing...as i said in my other
thread that you created...SmartDNS is currently on WIP/fixing/debug...but in my case on my
Netgear XR500 i've no problems with SmartDNS and its has been running for a days without a flaw.. _________________ 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 63600 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 63790 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 Nov 2015 Posts: 7112 Location: UK, London, just across the river..
Posted: Wed Feb 04, 2026 12:39 Post subject:
Geremia12 wrote:
Does it have to do with my WAN DHCP lease time (1440 min = 1 day)?
on my XR500 my local DCHP lease time is 360...but my WAN is dynamic where its a 1440...but as KP-69 noted if WAN
dynamic IP renews and your WAN connection drops and you get a new IP, than it is a problem, and in some scenarios people believe its the DNS and not its not the DNS..so, nothing to blame...for SmartDNS... _________________ 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 63600 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 63790 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
among my iptables commands. That really screwed things up, as it even block even DNS lookups to my router (the DHCP-Authoritative DNS server).
Actually, I tracked the issue down by enabling Syslogd and looking at the log; there was an error in my /tmp/smartdns/smartdns.conf file. It seems there must not be any blank lines.
Joined: 16 Nov 2015 Posts: 7112 Location: UK, London, just across the river..
Posted: Sat Feb 07, 2026 15:22 Post subject:
kernel-panic69 wrote:
........ if it's not your configuration:
consider all the mess in his config, this chap was writing a SmartDNS guide...unreal...
DD-WRT user.info : [smartdns] : maybe died, we need to re-exec it
On my XR500 I don't have those only in the begging on boot, but this is normal...and those then to happen when you have bad options that compromise SmartDNS...if you use a simple config and follow the guide..things will work as expected, otherwise enjoy the head-bang...and oddities...
and yes BS commit will follow..as it seams SmartDNS has its own issues..and as i keep saying
currently SmartDNS is Work in Progress..fixing/debugging have a look at the SVN
p.s. This thread needs a locky locky too 09.02.26 _________________ 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 63600 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 63790 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
Last edited by Alozaros on Mon Feb 09, 2026 6:11; edited 1 time in total
Posted: Sat Feb 21, 2026 3:35 Post subject: ditching "Smart"DNS in favor of DNSMasq with DNSSE
With r63734, which includes smartdns 1.20260217-0640, I'm getting even more memory issues; it seems to be a major leak. It crashes with tons of these errors:
