Joined: 26 Mar 2013 Posts: 1857 Location: Hung Hom, Hong Kong
Posted: Tue Apr 03, 2018 17:38 Post subject: Ping to www.google.com slowed by DD-WRT
Tonight I changed my DNS from 8.8.8.8 to 1.1.1.1, the ping to www.google.com instantly decreased from 13ms to 2ms!!! Oh well... so it's not the fault of DD-WRT.
update:
Today, the ping to www.google.com went back to 13ms. I did power off the router last night, DNS settings saved.
Nevertheless, if I directly set my client PC to use 1.1.1.1 as DNS, bypassing DD-WRT's DNSmasq, the ping became 2ms. So it seemed that DD-WRT's DNSmasq was really slowing down the DNS query.
Could I do something to fix that DNSmasq lag?
update again:
After going through the DNS settings all over again, the problem was fixed.
_________________ Router: Asus RT-N18U (rev. A1)
Drink, Blink, Stretch! Live long and prosper! May the Force and farces be with you!
Router/Version: Archer C8 V1 Firmware: Prev 33006 to this 35531 Kernel: 4.4.79 Reset?/Mode: Yes - full reset
[b]Issues/Errors: Couldn't get open vpn server to run. Fails at launch with error about CA cert. Assume this is my old cert and have reverted to 33006 till I have time to rebuild certs[/b
Joined: 02 Jan 2015 Posts: 69 Location: Gdansk, Poland
Posted: Tue Apr 03, 2018 23:26 Post subject:
jwh7 wrote:
That's not kernel 3.0, but DD v3.0. Check the kernel version on the status page, or run `uname -a`. Check the CFE settings w/ `strings /dev/mtd0|grep -ie mac -e addr`, or hexedit the one you modified. As for the wireless; what bandwidth and Wireless Network Mode did you use? Don't use *-Only, and Mixed may also have issues; try NG-Mixed.
Sorry, report is updated
Quote:
Router/Version: EA6900 with xvortex cfe
Firmware: DD-WRT v3.0-r35531 std (03/26/1Cool
Kernel: Linux 4.4.124 #2808 SMP Mon Mar 26 07:20:58 CEST 2018 armv7l
Router/Version: Linksys EA6500 v1
Firmware: DD-WRT v3.0-r35531 giga (03/26/18)
Kernel: Linux 3.10.108-dd #18320 Mon Mar 26 12:23:30 CEST 2018 mips
Previous: r33525
Mode/Status: 5GHz Client, 2.4GHz AP, NO bridge / working
Reset: no
Issues/Errors: None so far.
At last... This build is pretty stable on my test Linksys EA6500 v1!
No radio issue during a few days basic test, almost no tx error!
Even ntp is working, very nice!
Joined: 02 Jan 2015 Posts: 69 Location: Gdansk, Poland
Posted: Sat Apr 07, 2018 11:23 Post subject:
Phil9992 wrote:
Router/Version: Linksys EA6500 v1
Firmware: DD-WRT v3.0-r35531 giga (03/26/1 Kernel: Linux 3.10.108-dd #18320 Mon Mar 26 12:23:30 CEST 2018 mips
Previous: r33525
Mode/Status: 5GHz Client, 2.4GHz AP, NO bridge / working
Reset: no
Issues/Errors: None so far.
At last... This build is pretty stable on my test Linksys EA6500 v1!
No radio issue during a few days basic test, almost no tx error!
Even ntp is working, very nice!
I confirm this with EA6900
after 7 days all working ok!
Joined: 02 Jan 2015 Posts: 69 Location: Gdansk, Poland
Posted: Sat Apr 07, 2018 11:32 Post subject:
adasch wrote:
Router/Version: EA6900 with xvortex cfe Firmware: DD-WRT v3.0-r35531 std (03/26/1 Kernel: Linux 4.4.124 #2808 SMP Mon Mar 26 07:20:58 CEST 2018 armv7l Reset?/Mode: yes, clear setup Issues/Errors: not seem at this moment
jwh7 wrote:
the 2.4 and 5 GHz radios' MAC are set the same.
I have this same problem, but my first think is wrong modification of CFE
second is poor performance on 2.4G - maximum 80mbps with connection 216mbps
on 5g with 300mbps i have full performance, near 120mbps
cheers!
Confirmed my issue with MAC addresses.
After re-editing CFE (+2+4 not +2+3) and re-flashing I don't have duplicated any MAC's addresses between 2,4 and 5Ghz
Router/Version: Netgear WNDR3400v1 Firmware: DD-WRT v3.0-r35531 mega-nv64k (03/26/18 )
Kernel: Linux 3.10.108 #18336 Mon Mar 26 12:37:55 CEST 2018 mips
Previous: DD-WRT v3.0-r34311 mega-nv64k (12/29/17)
Mode/Status: Tested as Gateway-working, Using as Access Point-working
Reset: Reset to defaults before then durring upgrade then SSHd-erase nvram
Issues/Errors:
Lan (eth0) mac address and 2.4 wireless (wl0) mac addresses are the same?
Never touched CFE aside from backing it up after flashing Eko's trailered build in the 90's...per the Peacock of course
Log is spammed with:
daemon.err httpd[1465]: Request Error Code 408: No request appeared within a reasonable time period. <Kong> once commented on this error
Quote:
This tells you, that you are either doing something stupid or have some rogue application in your network.
This message is only triggered if an app connects to webif port, but does not send a request, e.g just plain telnet without entering a key after connection will trigger it.
Well.. I am the only device connected/authorized to router while this happens multiple times and at almost hourly intervals
The only stupid thing I was doing was occasionally reading the log? & time stamp of errors don't correlate
Also every time I log in to GUI:
daemon.info httpd[1465]: Authentication fail
daemon.err httpd[1465]: Request Error Code 401: Authorization required. please note that the default username is "root" in all newer releases
This one seams to be the NEW unspoken norm occurring on multiple devices and all newer firmware's
SFTP no longer connects (downgraded to SCP only)
Fills up flash so no room for jffs2
but hey..no brick, wireless seams stable, WL0/WL1 temps are cool (No CPU temp?) and load average is 0.00,0.01,0.04
Thank You BrainSlayer for all your work _________________ Location 1
R7800- DD-WRT v3.0-r53562 (10/03/23) Gateway
WNDR3400v1 DD-WRT v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R7800- DD-WRT v3.0-r51855 (02/25/23) Gateway
R6300v2- DD-WRT v3.0-r50671 (10-26-22) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
RBWAPG-5HACT2HND-BE RouterOS-v6.46.4 (2/21/20) Outdoor Access Point
2x RBSXTG-5HPACD RouterOS-v6.46.4 (2/21/20) PTP Bridge 866.6Mbps-1GbpsLAN
Location 3
2x R7000- DD-WRT v3.0-r50671 (10/26/22) Access Points
2x RBWAPG-60AD RouterOS-v6.45.9 (04/30/20) PTP Bridge 2.3Gbps-1GbpsLAN
2x RBSXTsqG-5acD RouterOS-v6.49.7 (10/14/22) PTP Bridge 866.6Mbps-1GbpsLAN Thank You BrainSlayer for ALL that you do & have done, also to "most" everyone here that shares their knowledge
Last edited by Dr_K on Thu Apr 26, 2018 23:20; edited 1 time in total
Posted: Sat Apr 21, 2018 17:12 Post subject: Mixed mode not working on E2000 / AP mode
I can only get 5GHz mode to work when selecting N-only(5GHz) as my mode on my E2000. If I use Mixed or NG-Mixed, my devices always connect at a slower speed and to a 2.4GHz channel. WiFi Analyzer shows 144Mbps on Mixed mode, and when using 5GHz, I get 300Mbps. Is there a way to broadcast both a 5GHz and a 2.4GHz signal so my older devices can still connect, but my newer ones can utilize the faster speeds?
Router Model: ASUS RT-AC66U
Status: WAN IPv6 broken, WiFi appears spotty
Reset: No
Errors:
ASUS RT-AC66U. Upgraded from r33525 to r35531. Could not get IPv6 address from my provider. WiFi showed "Connected but no Internet" on some of my mobile devices. Rolled back to r33525 to fix both issues.
Router/Version: Netgear R3700v2 Firmware: 3-26-18 r35531 wndr3700v2-webflash.bin
Kernel: Linux 3.10.108-dd #52380 Mon Mar 26 04:43:15 CEST 2018 mips
Previous: 6-24-16 r30016 wndr3700v2-webflash.bin
Mode/Status: Using as Access Point-working
Reset: No-gui dirty flash over openvpn... will reset when convenient because of such a big jump
Issues/Errors:
Lan & 2.4 Wireless(auth0) have same mac address?
(never touched my CFE aside from backing it up a long time ago)
The new normal error during successful login:
Authentication fail
Request Error Code 401: Authorization required. please note that the default username is "root" in all newer releases
SFTP no longer connects (downgraded to SCP only)
Fills up flash so no room for jffs2
Seams more stable for my use uptime 5 days
Thank You BrainSlayer for all your work _________________ Location 1
R7800- DD-WRT v3.0-r53562 (10/03/23) Gateway
WNDR3400v1 DD-WRT v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R7800- DD-WRT v3.0-r51855 (02/25/23) Gateway
R6300v2- DD-WRT v3.0-r50671 (10-26-22) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
RBWAPG-5HACT2HND-BE RouterOS-v6.46.4 (2/21/20) Outdoor Access Point
2x RBSXTG-5HPACD RouterOS-v6.46.4 (2/21/20) PTP Bridge 866.6Mbps-1GbpsLAN
Location 3
2x R7000- DD-WRT v3.0-r50671 (10/26/22) Access Points
2x RBWAPG-60AD RouterOS-v6.45.9 (04/30/20) PTP Bridge 2.3Gbps-1GbpsLAN
2x RBSXTsqG-5acD RouterOS-v6.49.7 (10/14/22) PTP Bridge 866.6Mbps-1GbpsLAN Thank You BrainSlayer for ALL that you do & have done, also to "most" everyone here that shares their knowledge
Last edited by Dr_K on Thu Apr 26, 2018 23:18; edited 1 time in total
Router/Version: Cisco-Linksys E1200v2 Firmware: DD-WRT v3.0-r35531 mega-nv64k (03/26/18 )
Kernel: Linux 3.10.108-dd #18336 Mon Mar 26 12:37:55 CEST 2018 mips
Previous: DD-WRT v24-33215_NEWD-2_K3.x_mega-nv64k (8-25-17)
Mode/Status: Using as Gateway-working
Reset: No-gui dirty flash over openvpn... will reset when convenient just because
Issues/Errors:
Lan & Wireless(wl0) have same mac address?
(never touched my CFE aside from backing it up a long time ago)
Although it's mega No curl & No openssl
The new normal error during successful login:
Authentication fail
Request Error Code 401: Authorization required. please note that the default username is "root" in all newer releases
SFTP no longer connects (downgraded to SCP only)
Fills up flash so no room for jffs2 (kind of a downer because router has no usb port)
Seams stable for my use uptime 5 days
Thank You BrainSlayer for all your work _________________ Location 1
R7800- DD-WRT v3.0-r53562 (10/03/23) Gateway
WNDR3400v1 DD-WRT v3.0-r35531_mega-nv64k (03/26/18 ) Access Point
WRT160Nv3 DD-WRT ?v3?.0-r35531 mini (03/26/18 ) Access Point
WRT54GSv5 DD-WRT v24-r33555_micro_generic (10/20/17) Repeater
Location 2
R7800- DD-WRT v3.0-r51855 (02/25/23) Gateway
R6300v2- DD-WRT v3.0-r50671 (10-26-22) Access Point
WNDR3700v2 DD-WRT v3.0-r35531 std (03/26/18 ) Access Point
E1200 v2 DD-WRT v3.0-r35531 mega-nv64k (03/26/18 ) Gateway(for trivial reasons)
RBWAPG-5HACT2HND-BE RouterOS-v6.46.4 (2/21/20) Outdoor Access Point
2x RBSXTG-5HPACD RouterOS-v6.46.4 (2/21/20) PTP Bridge 866.6Mbps-1GbpsLAN
Location 3
2x R7000- DD-WRT v3.0-r50671 (10/26/22) Access Points
2x RBWAPG-60AD RouterOS-v6.45.9 (04/30/20) PTP Bridge 2.3Gbps-1GbpsLAN
2x RBSXTsqG-5acD RouterOS-v6.49.7 (10/14/22) PTP Bridge 866.6Mbps-1GbpsLAN Thank You BrainSlayer for ALL that you do & have done, also to "most" everyone here that shares their knowledge
after a whole month on this firmware, I have noticed that on my ASUS AC-66U with two things I can't figure out
1) after 3-5 days usage. I will lose gmail.com DNS look up. every "popular" site will be fine. I have to do a hard reboot and it comes back. Very annoying
2)5GHZ is being very problematic with my Pixel 2 XL. it takes 45sec - 60sec to connect to the internet. Not sure why. _________________ ASUS RT-AC3200 - Deployed Client's site
ASUS RT-AC5200 - Merlin
ASUS RT-AX88U - Merlin
it just suddenly can't resolve mail.google.com. But a reboot of the router fixes, but it's annoying as hell having to reboot it every few days _________________ ASUS RT-AC3200 - Deployed Client's site
ASUS RT-AC5200 - Merlin
ASUS RT-AX88U - Merlin
Joined: 13 Jun 2006 Posts: 1608 Location: SE Michigan USA
Posted: Tue May 01, 2018 20:51 Post subject:
mbze430 wrote:
it just suddenly can't resolve mail.google.com. But a reboot of the router fixes, but it's annoying as hell having to reboot it every few days
Is it just mail.google.com or is it other sites as well? Keep in mind that how DNS service works is if a lookup fails the DNS service tucks that failure away and when you try again the router says I know that does not resolve so I will not even try. After a period of time this info is flushed out of DNS. You can also play around a little with other DNS servers with nslookup.
I assume you have checked your client, if windows, with ipconfig to see that a DNS server is given. Can the client ping the router? Can you ping 8.8.8.8?
The Above was done directly on the DDwRT router. clients (windows) are the same even using nslookup mail.google.com 8.8.8.8
Yes 8.8.8.8 is pingable
I will have to try a level 3 when the next time this happens again.
It will work for a few days _________________ ASUS RT-AC3200 - Deployed Client's site
ASUS RT-AC5200 - Merlin
ASUS RT-AX88U - Merlin
