Posted: Sat Dec 04, 2021 2:50 Post subject: Asus RT-AC66U not serving DHCP
I've got an Asus RT-AC66U, it's been running rather well, however, it won't serve DHCP addresses after a certain period of time. A reboot will fix this. At present, I'm using v3.0-r47656 giga. Would changing the version fix this?
Joined: 08 May 2018 Posts: 14125 Location: Texas, USA
Posted: Sat Dec 04, 2021 3:11 Post subject:
1) Please remove your double-tap (you posted the same post twice)
2) Need some further information of your environment. Don't know of any reason why DHCP would fail, unless you used an invalid hostname in a static lease or exceeded your pool size. I don't know of anything else
I have removed it. Sorry about that. No idea why it did it twice but the other is gone. Right now, I have three routers, the main one with the DHCP server, and the other two that I'm using as wireless access points. They're not running DHCP servers of their own and are reliant on the "main" one to provide DHCP. I'll update to the latest version now and see if that helps.
Joined: 08 May 2018 Posts: 14125 Location: Texas, USA
Posted: Sat Dec 04, 2021 4:17 Post subject:
You may want to try enabling STP on the LAN (br0) of main router and on br0 both APs as well. If all are running DD-WRT, your WAPs should have the main router set as gateway in the main setup page. If the issue persists, perhaps screenshots of applicable settings may help us figure out what's wrong. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
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Linux User #377467 counter.li.org / linuxcounter.net
Joined: 06 Jun 2006 Posts: 3763 Location: I'm the one on the plate.
Posted: Sat Dec 04, 2021 11:12 Post subject: Reboot
Glitches like this are sometimes hardware related, especially if the radio is a couple of years old. If the firmware upgrade does not fix it then you might consider a scheduled reboot at 4 AM. _________________ http://69.175.13.131:8015 Streaming Week-End Disco. Station Ripper V 1.1 will do.
Joined: 08 May 2018 Posts: 14125 Location: Texas, USA
Posted: Tue Dec 07, 2021 3:24 Post subject:
Impossible because udhcpd is no longer included in DD-WRT. So, this is where we ask for screenshots of your configs to see what may be out of place. Only other option is hard resets and reconfigure from scratch, no restoring from backup. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
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Linux User #377467 counter.li.org / linuxcounter.net
Joined: 08 May 2018 Posts: 14125 Location: Texas, USA
Posted: Tue Dec 07, 2021 3:59 Post subject:
If you are using WAN DNS or 3 static entries on the main setup page, turn off query in strict order. The only way that seems to not be having issues is via no-resolv directive. Are the devices just not getting IP addresses or are they losing internet?
Turn off query in strict order? This is my main page. I am only using two DNS servers and I don't see an option for query.
As for the devices, they are not getting ip addresses. In this case, a laptop that is normally pulling an IP in range(100-149) will get the address 169.254.228.11 or something in the Automatic Private IP range.