WAN IP changes every night

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michele42
DD-WRT Novice


Joined: 15 Sep 2019
Posts: 5
PostPosted: Sun Sep 29, 2019 9:02    Post subject: WAN IP changes every night Reply with quote
Hi guys, I'm sorry to ask for help but I searched the forum and the web and I didn't find anything. I'm experiencing a very annoying issue: I'm running ddwrt in pppoe mode, in a router (AC 3200 - ddwrt v3.0-r40932) connected to a modem, and my wan IP keeps on changing every night at 10pm. I really need to disable this behaviour.
This is the log:
Code:
Sep 25 22:00:00 Sislynk DDWRT user.info : pppd : pppoe process successfully stopped
Sep 25 22:00:00 Sislynk DDWRT user.info : inadyn : dynamic dns daemon successfully stopped
Sep 25 22:00:00 Sislynk DDWRT daemon.info pppd[23566]: Exit.
Sep 25 22:00:00 Sislynk DDWRT user.info : redial : ppp redial daemon successfully stopped
Sep 25 22:00:01 Sislynk DDWRT daemon.notice pppd[31991]: pppd 2.4.7 started by root, uid 0
Sep 25 22:00:01 Sislynk DDWRT user.info : ppp_redial : redial process successfully started
Sep 25 22:00:01 Sislynk DDWRT user.info : dnsmasq : daemon successfully stopped
Sep 25 22:00:01 Sislynk DDWRT user.info : dnsmasq : daemon successfully started
Sep 25 22:00:01 Sislynk DDWRT user.info : wland : daemon successfully stopped
Sep 25 22:00:01 Sislynk DDWRT user.info : wland : daemon successfully started
Sep 25 22:00:01 Sislynk DDWRT user.info : wan : WAN is up. IP: 79.x.x.x
Sep 25 22:00:01 Sislynk DDWRT user.info : process_monitor : daemon successfully stopped
Sep 25 22:00:01 Sislynk DDWRT user.info : process_monitor : successfully started
Sep 25 22:00:01 Sislynk DDWRT user.info : ddns : inadyn daemon successfully started


I really hope you guys can shed some light on this strange behaviour! Thank you!

PS: logs are a little bit old but they are identical to the new ones.
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NBA Jam
DD-WRT Novice


Joined: 25 Nov 2018
Posts: 37
PostPosted: Sun Sep 29, 2019 16:19    Post subject: Reply with quote
This sounds like it could be an ISP issue. Check your modem logs as well and see what it says (usually 192.168.100.1).

Try backing up your settings and reverting to stock. If it still happens on stock, that should give you a good indicator.
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Zyxx
DD-WRT Guru


Joined: 28 Dec 2018
Posts: 739
PostPosted: Mon Sep 30, 2019 7:07    Post subject: Reply with quote
Also check the SETUP Tab --> PPPoE --> "advanced settings".

There you are able to specify automatic reconnect.

Does this happen with the device issued by your ISP?
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michele42
DD-WRT Novice


Joined: 15 Sep 2019
Posts: 5
PostPosted: Thu Oct 03, 2019 7:28    Post subject: Reply with quote
I tried disabling the automatic reconnect, which I thought was a way to automatically reconnect in case of disconnection, and it seems to be working. Thank everybody for the help.
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