The router rut955 constantly breaks the connection via pptp.
Thu Oct 14 09:29:42 2021 daemon.info dnsmasq-dhcp[8385]: DHCPREQUEST(br-lan) 192.168.2.207 cc:50:e3:ca:54:5e
Thu Oct 14 09:29:42 2021 daemon.info dnsmasq-dhcp[8385]: DHCPACK(br-lan) 192.168.2.207 cc:50:e3:ca:54:5e ESP_CA545E
Thu Oct 14 09:29:43 2021 daemon.debug dnsmasq-script[8385]: command failed: No such device (-19)
Thu Oct 14 09:29:43 2021 user.info Messaged[23514]: Start from new event "DHCP" "Leased 192.168.2.207 IP address for client CC:50:E3:CA:54:5E - ESP_CA545E in LAN"
Thu Oct 14 09:44:20 2021 daemon.info pppd[8485]: No response to 10 echo-requests
Thu Oct 14 09:44:20 2021 daemon.notice pppd[8485]: Serial link appears to be disconnected.
Thu Oct 14 09:44:20 2021 daemon.info pppd[8485]: Connect time 399.8 minutes.
Thu Oct 14 09:44:20 2021 daemon.info pppd[8485]: Sent 47287 bytes, received 14306 bytes.
Thu Oct 14 09:44:20 2021 daemon.notice netifd: Network device 'pptp-dacha2' link is down
Thu Oct 14 09:44:20 2021 daemon.notice netifd: Interface 'dacha2' has lost the connection
Thu Oct 14 09:44:20 2021 daemon.info dnsmasq[8385]: reading /tmp/resolv.conf.auto
Thu Oct 14 09:44:20 2021 daemon.info dnsmasq[8385]: using only locally-known addresses for domain lan
Thu Oct 14 09:44:20 2021 daemon.info dnsmasq[8385]: using nameserver 10.166.236.244#53
Thu Oct 14 09:44:20 2021 daemon.info dnsmasq[8385]: using nameserver 10.166.236.253#53
Thu Oct 14 09:44:20 2021 local1.info hotplug-gsmstate[27450]: envACT: ifdown
Thu Oct 14 09:44:20 2021 local1.info hotplug-gsmstate[27450]: envINT: dacha2
Thu Oct 14 09:44:20 2021 user.notice gre-keepalive: Reloading gre-tunnel-keepalive due to ifdown of dacha2 ()
Thu Oct 14 09:44:26 2021 daemon.notice pppd[8485]: Connection terminated.
Thu Oct 14 09:44:26 2021 daemon.notice pppd[8485]: Modem hangup
Thu Oct 14 09:44:57 2021 daemon.info pppd[8485]: Using interface pptp-dacha2
Thu Oct 14 09:44:57 2021 kern.info kernel: [324584.980000] pptp-dacha2: renamed from ppp0
Thu Oct 14 09:44:57 2021 daemon.notice pppd[8485]: Connect: pptp-dacha2 <--> pptp ()
Thu Oct 14 09:45:01 2021 daemon.err pppd[8485]: MS-CHAPv2 mutual authentication failed.
Thu Oct 14 09:45:01 2021 daemon.err pppd[8485]: CHAP authentication failed
Thu Oct 14 09:45:01 2021 daemon.notice pppd[8485]: Connection terminated.
Thu Oct 14 09:45:32 2021 daemon.info pppd[8485]: Using interface pptp-dacha2
Thu Oct 14 09:45:32 2021 daemon.notice pppd[8485]: Connect: pptp-dacha2 <--> pptp ()
Thu Oct 14 09:45:32 2021 kern.info kernel: [324620.070000] pptp-dacha2: renamed from ppp0
Thu Oct 14 09:45:37 2021 daemon.notice pppd[8485]: CHAP authentication succeeded
Thu Oct 14 09:45:41 2021 daemon.notice pppd[8485]: local IP address 172.XX.1.XX
Thu Oct 14 09:45:41 2021 daemon.notice netifd: Network device 'pptp-dacha2' link is up
Thu Oct 14 09:45:41 2021 daemon.notice pppd[8485]: remote IP address 192.168.1.1
Thu Oct 14 09:45:41 2021 daemon.notice pppd[8485]: primary DNS address 192.168.1.1
Thu Oct 14 09:45:41 2021 local1.info gsmd[7517]: gsmd send: 'AT+QCSQ=1' (10)
Thu Oct 14 09:45:41 2021 local1.info gsmd[7517]: gsmd get: 'OK' (2)
Thu Oct 14 09:45:41 2021 daemon.notice netifd: Interface 'dacha2' is now up
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