Slow DNS?

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Alozaros
DD-WRT Guru


Joined: 16 Nov 2015
Posts: 6410
Location: UK, London, just across the river..

PostPosted: Wed Sep 16, 2020 8:50    Post subject: Reply with quote
some TV/smart devices have a baked in DNS...and using 192.168.1.1/router internal DNS causes latency...as simple as that..was it mentioned on the link i posted too..i guess...
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Atheros
TP-Link WR740Nv1 ---DD-WRT 55179 WAP
TP-Link WR1043NDv2 -DD-WRT 55303 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 55460 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55460 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55363 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Wed Sep 16, 2020 9:04    Post subject: Reply with quote
maybe the TV considers it a rebind attack and will not allow it?
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Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
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foz111
DD-WRT Guru


Joined: 01 Oct 2017
Posts: 704
Location: Earth

PostPosted: Wed Sep 16, 2020 12:00    Post subject: Reply with quote
i was able to force my samsung 2019 smart tv to use my Pi-hole by manually configuring a static IP & DNS so it should work for you, pretty sure Samsung hard code google dns so need to manually enter DNS server to bypass, well seemed the youtube app is hard coded at least.
Alozaros
DD-WRT Guru


Joined: 16 Nov 2015
Posts: 6410
Location: UK, London, just across the river..

PostPosted: Wed Sep 16, 2020 17:06    Post subject: Reply with quote
yep setting static IP & DNS on smart devices always helps...I set it on TV's/smart devices for the same reason, Philips, Samsung and Sony TV i've no problem with setting a foreign DNS, like either my router DNS or 9.9.9.9 most of the time...
_________________
Atheros
TP-Link WR740Nv1 ---DD-WRT 55179 WAP
TP-Link WR1043NDv2 -DD-WRT 55303 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 55460 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55460 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55363 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
greenhost
DD-WRT Novice


Joined: 20 Jun 2016
Posts: 7

PostPosted: Mon Nov 28, 2022 15:56    Post subject: Reply with quote
rrm74001 wrote:
msoengineer wrote:
you need to check forced DNS redirection and click ignore wan DNS at the top of the main setup tab




Ignore WAN DNS - I do not seem to have this option.

Force DNS Redirection - I am not sure why that would help? If a client is already configured to use the router as DNS then this just seems redundant.


I'm on Firmware: DD-WRT v3.0-r50274 std (09/27/22)
Even though this is a bit old thread, this really helped. I was struggling with slow DNS since couple months after the upgrade. Thanks a ton!
thommy181
DD-WRT User


Joined: 16 Mar 2019
Posts: 353
Location: Szczecin, Poland EU

PostPosted: Tue Dec 13, 2022 9:18    Post subject: Reply with quote
Why you don't use the newest build of dd-wrt. I have the dnsmasq and own configuration on the newest build. I haven't problems with DNS. My router is Tp-Link WDR3600 so it's rather old model. It works rather good. Update router to build 12/12/22.
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