Pptp VPN cant connect

Support Network
1

Hello.

My vpn was working about a month ago and now i cant connect. Is this a normal problem after updates? I am not expert with linux, so please be easy with me
run the command: journalctl -b -u NetworkManager --no-hostname --no-pager

Δεκ 03 18:01:42 NetworkManager[9273]: <info>  [1670083302.5068] audit: op="statistics" interface="enp0s25" ifindex=2 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:01:42 NetworkManager[9273]: <info>  [1670083302.5211] audit: op="statistics" interface="wlo1" ifindex=3 args="2000" pid=874 uid=1000 result="success"
Δεκ 03 18:01:42 NetworkManager[9273]: <info>  [1670083302.5255] audit: op="statistics" interface="wlo1" ifindex=3 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:01:44 NetworkManager[9273]: <info>  [1670083304.3089] vpn[0x55f9e32ca4c0,b5401fac-6fc7-409c-a625-34342906a63a,"CSD"]: starting pptp
Δεκ 03 18:01:44 NetworkManager[9273]: <info>  [1670083304.3093] audit: op="connection-activate" uuid="b5401fac-6fc7-409c-a625-34342906a63a" name="CSD" pid=874 uid=1000 result="success"
Δεκ 03 18:01:44 pppd[9714]: Plugin /usr/lib/pppd/2.4.9/nm-pptp-pppd-plugin.so loaded.
Δεκ 03 18:01:44 NetworkManager[9714]: Plugin /usr/lib/pppd/2.4.9/nm-pptp-pppd-plugin.so loaded.
Δεκ 03 18:01:44 pppd[9714]: pppd 2.4.9 started by root, uid 0
Δεκ 03 18:01:44 pppd[9714]: Using interface ppp0
Δεκ 03 18:01:44 NetworkManager[9714]: Using interface ppp0
Δεκ 03 18:01:44 NetworkManager[9714]: Connect: ppp0 <--> /dev/pts/4
Δεκ 03 18:01:44 pppd[9714]: Connect: ppp0 <--> /dev/pts/4
Δεκ 03 18:01:44 NetworkManager[9273]: <info>  [1670083304.3610] manager: (ppp0): new Ppp device (/org/freedesktop/NetworkManager/Devices/5)
Δεκ 03 18:01:44 pptp[9717]: nm-pptp-service-9709 log[main:pptp.c:353]: The synchronous pptp option is NOT activated
Δεκ 03 18:01:44 pptp[9727]: nm-pptp-service-9709 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 1 'Start-Control-Connection-Request'
Δεκ 03 18:01:44 pptp[9727]: nm-pptp-service-9709 log[ctrlp_disp:pptp_ctrl.c:781]: Received Start Control Connection Reply
Δεκ 03 18:01:44 pptp[9727]: nm-pptp-service-9709 log[ctrlp_disp:pptp_ctrl.c:815]: Client connection established.
Δεκ 03 18:01:45 pptp[9727]: nm-pptp-service-9709 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 7 'Outgoing-Call-Request'
Δεκ 03 18:01:45 pptp[9727]: nm-pptp-service-9709 log[ctrlp_disp:pptp_ctrl.c:900]: Received Outgoing Call Reply.
Δεκ 03 18:01:45 pptp[9727]: nm-pptp-service-9709 log[ctrlp_disp:pptp_ctrl.c:938]: Outgoing call established (call ID 46209, peer's call ID 41344).
Δεκ 03 18:02:08 NetworkManager[9273]: <info>  [1670083328.7663] audit: op="statistics" interface="enp0s25" ifindex=2 args="0" pid=874 uid=1000 result="success"
Δεκ 03 18:02:08 NetworkManager[9273]: <info>  [1670083328.7709] audit: op="statistics" interface="enp0s25" ifindex=2 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:02:08 NetworkManager[9273]: <info>  [1670083328.7735] audit: op="statistics" interface="wlo1" ifindex=3 args="0" pid=874 uid=1000 result="success"
Δεκ 03 18:02:08 NetworkManager[9273]: <info>  [1670083328.7776] audit: op="statistics" interface="wlo1" ifindex=3 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:02:13 NetworkManager[9273]: <info>  [1670083333.0634] audit: op="statistics" interface="enp0s25" ifindex=2 args="2000" pid=874 uid=1000 result="success"
Δεκ 03 18:02:13 NetworkManager[9273]: <info>  [1670083333.0691] audit: op="statistics" interface="enp0s25" ifindex=2 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:02:13 NetworkManager[9273]: <info>  [1670083333.0833] audit: op="statistics" interface="wlo1" ifindex=3 args="2000" pid=874 uid=1000 result="success"
Δεκ 03 18:02:13 NetworkManager[9273]: <info>  [1670083333.0877] audit: op="statistics" interface="wlo1" ifindex=3 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:02:15 pppd[9714]: LCP: timeout sending Config-Requests
Δεκ 03 18:02:15 NetworkManager[9714]: LCP: timeout sending Config-Requests
Δεκ 03 18:02:15 NetworkManager[9714]: Connection terminated.
Δεκ 03 18:02:15 pppd[9714]: Connection terminated.
Δεκ 03 18:02:15 NetworkManager[9273]: <warn>  [1670083335.3831] vpn[0x55f9e32ca4c0,b5401fac-6fc7-409c-a625-34342906a63a,"CSD"]: dbus: failure: connect-failed (1)
Δεκ 03 18:02:15 pptp[9727]: nm-pptp-service-9709 log[callmgr_main:pptp_callmgr.c:245]: Closing connection (unhandled)
Δεκ 03 18:02:15 NetworkManager[9714]: Terminating on signal 15
Δεκ 03 18:02:15 NetworkManager[9714]: Modem hangup
Δεκ 03 18:02:15 pppd[9714]: Terminating on signal 15
Δεκ 03 18:02:15 pppd[9714]: Modem hangup
Δεκ 03 18:02:15 pptp[9727]: nm-pptp-service-9709 log[ctrlp_rep:pptp_ctrl.c:258]: Sent control packet type is 12 'Call-Clear-Request'
Δεκ 03 18:02:15 pptp[9727]: nm-pptp-service-9709 log[call_callback:pptp_callmgr.c:84]: Closing connection (call state)
Δεκ 03 18:02:15 pppd[9714]: Exit.
Δεκ 03 18:02:15 NetworkManager[9273]: <info>  [1670083335.5900] audit: op="statistics" interface="enp0s25" ifindex=2 args="0" pid=874 uid=1000 result="success"
Δεκ 03 18:02:15 NetworkManager[9273]: <info>  [1670083335.5948] audit: op="statistics" interface="enp0s25" ifindex=2 args="500" pid=1017 uid=1000 result="success"
Δεκ 03 18:02:15 NetworkManager[9273]: <info>  [1670083335.5978] audit: op="statistics" interface="wlo1" ifindex=3 args="0" pid=874 uid=1000 result="success"
Δεκ 03 18:02:15 NetworkManager[9273]: <info>  [1670083335.6020] audit: op="statistics" interface="wlo1" ifindex=3 args="500" pid=1017 uid=1000 result="success"

Thank you

2

Network manager is looking for the interface. Open a terminal and run ip a and post the results here.

3 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether a0:2b:b8:39:0b:04 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.4/24 brd 192.168.1.255 scope global dynamic noprefixroute enp0s25
       valid_lft 76769sec preferred_lft 76769sec
    inet6 2a02:586:802c:b87e:9456:a214:37cc:f74d/64 scope global dynamic noprefixroute 
       valid_lft 604766sec preferred_lft 86366sec
    inet6 fe80::9b3a:3bb0:4ff0:b933/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether c4:d9:87:93:90:d1 brd ff:ff:ff:ff:ff:ff
    altname wlp92s0
    inet 192.168.1.3/24 brd 192.168.1.255 scope global dynamic noprefixroute wlo1
       valid_lft 76772sec preferred_lft 76772sec
    inet6 2a02:586:802c:b87e:bfd9:4f1e:d176:33a6/64 scope global dynamic noprefixroute 
       valid_lft 604766sec preferred_lft 86366sec
    inet6 fe80::8e81:a5b3:bc4e:cfd8/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
17: vboxnet0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 0a:00:27:00:00:00 brd ff:ff:ff:ff:ff:ff
18: ppp0: <POINTOPOINT,MULTICAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 3
    link/ppp
4

It looks like the network interfaces are correct. What vpn are you using?

5

what do you mean? Its a PTPP connection to my university

6

You may be enlightened

https://wiki.archlinux.org/title/PPTP_Client