RT-AC68U WAN disconnects since firmware 376 and above

[ca509]

Hi,

i reall need some advice on how to proceed. Since last year I run a AC68u with a Speedtouch modem, using PPTP and ADSL in Austria.

Everything worked perfectly with firmware 374.4422 from about February till last week. Then I udpated to the latest firmware, did a factory reset and entered all settings again.

The connection works fine for sometimes 24 hour, then their is a force re-connect by the driver, sometimes less. Then there is no way to access the router from outside (Openvpn or Webgui) but sometimes internet access from within the network works. Sometimes nothing works.

The modem however is connected. I also replaced it already with a new one.
With firmware 4422 there never was any issue with the re-connection..




The log says

Jan 15 10:59:57 ntp: start NTP update
Jan 15 11:59:57 ntp: start NTP update
Jan 15 12:56:56 pptp[642]: Connection terminated.
Jan 15 12:56:56 pptp[642]: Modem hangup
Jan 15 12:56:57 WAN Connection: Fail to connect with some issues.
Jan 15 12:56:57 stop_nat_rules: apply the redirect_rules!
Jan 15 12:57:07 pptp[642]: Connect: ppp0 <--> pptp (10.0.0.138)
Jan 15 12:57:37 pptp[642]: LCP: timeout sending Config-Requests
Jan 15 12:57:37 pptp[642]: Connection terminated.
Jan 15 12:57:37 pptp[642]: Modem hangup

and

Jan 17 20:27:06 wanduck exit: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Jan 17 20:27:10 kernel: wl_module_init: passivemode set to 0x0
Jan 17 20:27:10 kernel: wl_module_init: txworkq set to 0x1
Jan 17 20:27:10 kernel: eth1: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.86 (r456083)
Jan 17 20:27:10 kernel: eth2: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.86 (r456083)
Jan 17 20:27:12 stop_nat_rules: apply the redirect_rules!
Jan 17 20:27:12 WAN Connection: Fail to connect with some issues.
Jan 17 20:27:12 dnsmasq[1363]: warning: interface tun21 does not currently exist
Jan 17 20:27:12 dnsmasq[1363]: warning: interface ppp1* does not currently exist
Jan 17 20:27:12 start_nat_rules: apply the nat_rules(/tmp/nat_rules__eth0)!
Jan 17 20:27:12 pptp[1380]: pppd 2.4.7 started by admin, uid 0
Jan 17 20:27:13 pptp[1380]: Connect: ppp0 <--> pptp (10.0.0.138)
Jan 17 20:27:17 RT-AC68U: start httpd - SSL
Jan 17 20:27:43 pptp[1380]: LCP: timeout sending Config-Requests
Jan 17 20:27:43 pptp[1380]: Connection terminated.
Jan 17 20:27:43 pptp[1380]: Modem hangup
Jan 17 20:27:54 pptp[1380]: Connect: ppp0 <--> pptp (10.0.0.138)
Jan 17 20:28:24 pptp[1380]: LCP: timeout sending Config-Requests
Jan 17 20:28:24 pptp[1380]: Connection terminated.
Jan 17 20:28:24 pptp[1380]: Modem hangup
Jan 17 20:28:36 pptp[1380]: Connect: ppp0 <--> pptp (10.0.0.138)
Jan 17 20:29:06 pptp[1380]: LCP: timeout sending Config-Requests
Jan 17 20:29:06 pptp[1380]: Connection terminated.
Jan 17 20:29:06 pptp[1380]: Modem hangup
Jan 17 20:29:17 pptp[1380]: Connect: ppp0 <--> pptp (10.0.0.138)
Jan 17 20:29:47 pptp[1380]: LCP: timeout sending Config-Requests
Jan 17 20:29:47 pptp[1380]: Connection terminated.
Jan 17 20:29:47 pptp[1380]: Modem hangup
Jan 17 20:29:58 pptp[1380]: Connect: ppp0 <--> pptp (10.0.0.138)

 

[ja-mike-a]

I've got the same problem here with N66U. It works up to 376.48_3 but it breaks with any higher firmware.

The problem is the pppd version.
pppd 2.4.5 (in 376.48_3) works.
pppd 2.4.7 (since 376.49) doesn't work.

Maybe RMerlin knows more about this issue?

 

[Jacob Hornbech]

I have the exact same issue, and it is driving me nuts. I've reverted to the newest ASUS stock firmware, and it is still happening

Hoping to get some pointers on what to do, other than reverting to an older firmware