Unable to use pptp

I've config a PPTP client but i've this error message on network interfaces:


The logs:

Tue Sep  1 20:31:26 2020 daemon.info pppd[23699]: Plugin pptp.so loaded.
Tue Sep  1 20:31:26 2020 daemon.info pppd[23699]: PPTP plugin version 1.00
Tue Sep  1 20:31:26 2020 daemon.notice pppd[23699]: pppd 2.4.7 started by root, uid 0
Tue Sep  1 20:31:26 2020 daemon.debug pppd[23700]: pptp: call manager for 37.187.158.97
Tue Sep  1 20:31:26 2020 daemon.debug pppd[23700]: window size:	50
Tue Sep  1 20:31:26 2020 daemon.debug pppd[23700]: call id:	5192
Tue Sep  1 20:31:26 2020 daemon.debug pppd[23700]: control connection
Tue Sep  1 20:31:26 2020 daemon.debug pppd[23700]: unix_sock
Tue Sep  1 20:31:26 2020 daemon.debug pppd[23701]: Sent control packet type is 1 'Start-Control-Connection-Request'
Tue Sep  1 20:31:27 2020 daemon.debug pppd[23701]: Received Start Control Connection Reply
Tue Sep  1 20:31:27 2020 daemon.debug pppd[23701]: Client connection established.
Tue Sep  1 20:31:27 2020 daemon.debug pppd[23701]: Sent control packet type is 7 'Outgoing-Call-Request'
Tue Sep  1 20:31:27 2020 daemon.debug pppd[23701]: Received Outgoing Call Reply.
Tue Sep  1 20:31:27 2020 daemon.debug pppd[23701]: Outgoing call established (call ID 5192, peer's call ID 48896).
Tue Sep  1 20:31:27 2020 daemon.debug pppd[23699]: using channel 5184
Tue Sep  1 20:31:27 2020 kern.info kernel: [165026.417956] pptp-VPN: renamed from ppp0
Tue Sep  1 20:31:28 2020 daemon.info pppd[23699]: Renamed interface ppp0 to pptp-VPN
Tue Sep  1 20:31:28 2020 daemon.info pppd[23699]: Using interface pptp-VPN
Tue Sep  1 20:31:28 2020 daemon.notice pppd[23699]: Connect: pptp-VPN <--> pptp (fr1.vpnbook.com)
Tue Sep  1 20:31:28 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:31 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:34 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:35 2020 authpriv.info dropbear[23455]: Exit (root): Exited normally
Tue Sep  1 20:31:35 2020 authpriv.info dropbear[23548]: Exit (root): Exited normally
Tue Sep  1 20:31:37 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:40 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:43 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:46 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:49 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:52 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:55 2020 daemon.debug pppd[23699]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xbc939b1d>]
Tue Sep  1 20:31:58 2020 daemon.warn pppd[23699]: LCP: timeout sending Config-Requests
Tue Sep  1 20:31:58 2020 daemon.notice pppd[23699]: Connection terminated.
Tue Sep  1 20:31:58 2020 daemon.debug pppd[23701]: Closing connection (unhandled)
Tue Sep  1 20:31:58 2020 daemon.debug pppd[23701]: Sent control packet type is 12 'Call-Clear-Request'
Tue Sep  1 20:31:58 2020 daemon.debug pppd[23701]: Closing connection (call state)
Tue Sep  1 20:31:58 2020 daemon.notice pppd[23699]: Modem hangup
Tue Sep  1 20:31:58 2020 daemon.info pppd[23699]: Exit.
Tue Sep  1 20:31:58 2020 daemon.notice netifd: Interface 'VPN' is now down

The firewall:


Custom rules:

iptables -t raw -A OUTPUT -p tcp \
-m comment --comment "!fw3: PPTP connection tracking" \
-m tcp --dport 1723 -j CT --helper pptp

Device info:

Model	TP-Link Archer C7 v5
Architecture	Qualcomm Atheros QCA956X ver 1 rev 0
Firmware Version	OpenWrt 19.07.3 r11063-85e04e9f46 / LuCI openwrt-19.07 branch git-20.136.49537-fb2f363
Kernel Version	4.14.180

I've tried with differents VPN and it's the same, any idea?
I want to setup for expressvpn

up? Is someone can help me

What is your router?

fwiw, I don't believe pptp to a VPN provider using OpenWrt is widely used. It may be why there has been no response.

An increasing number of VPN providers are dropping support for pptp and l2tp because of poorer security. Openvpn protocol is far more popular particularly for OpenWrt.

I could be wrong, but at quick glance there may be an authentication problem. Perhaps try LEDE 17 or OpenWrt 18 instead of OpenWrt 19 ?

Your zone settings also contains an 'unnamed' interface and so does not seem to match the example shown in the wiki page. It suggests your router is not configured correctly if you do succeed in fixing above issue.
https://openwrt.org/docs/guide-user/services/vpn/pptp/client

Last time I tried to use pptp with LEDE 17 and OpenWrt 18, it was just unreliable and not much significantly faster than Openvpn protocol. The openvpn client for LEDE/OpenWrt is more reliable imho.

fwiw, if you wish to use pptp, perhaps you should use the OEM firmware if you have a router that include supports pptp. Here is one googled example for a typical TPlink router
https://support.safervpn.com/hc/en-us/articles/360035428254-Manual-PPTP-Setup-on-TP-Link-Router

Otherwise, consider using Openvpn client on OpenWrt.
https://openwrt.org/docs/guide-user/services/vpn/openvpn/client-luci

Alternative guide links to this document which uses vpnbook as example btw:
https://openwrt.ebilan.co.uk/viewtopic.php?f=7&t=279

Thank, i will check for " unnamed", i need openwrt firmware because for other thinks. I'm trying L2TP

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