CyberGhost VPN connection error on GL-AR750

GL-AR750 router

When attempting t o connect to CyberGhost VPN, I get the following error:

Could not determine IPv4/IPv6 protocol

SIGHUP[soft,init_instance] received, process restarting

OpenVPN 2.4.5 mips-openwrt-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD]

library versions: OpenSSL 1.0.2o 27 Mar 2018, LZO 2.10

Restart pause, 2 second(s)

Firmware version: 3.027
The configuration file was created using the GL-inet and CyberGhost instructions.

The config file for openvpn was created by CyberGhost as follows:

=============
client
remote 9-1-gb.cg-dialup.net 443
dev tun
proto tcp
auth-user-pass

resolv-retry infinite
redirect-gateway def1
persist-key
persist-tun
nobind
cipher AES-256-CBC
auth SHA256
ping 15
ping-exit 90
ping-timer-rem
script-security 2
remote-cert-tls server
route-delay 5
verb 4
comp-lzo

ca ca.crt

cert client.crt

key client.key

========================

I really need my vpn working for my office work
I’m at a loss at what to do.

You can force IPV4 by changing the proto option to tcp4,like follwing
proto tcp4

Hi,
I think I have the same problem here. Already tried many other servers from Cyberghost. (GL-MT300N-V2 fw 3.102)

OpenVPN 2.4.5 mipsel-openwrt-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD]
library versions: OpenSSL 1.0.2o 27 Mar 2018, LZO 2.10
Restart pause, 5 second(s)
NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Control Channel MTU parms [ L:1621 D:1212 EF:38 EB:0 ET:0 EL:3 ]

Expected Remote Options String (VER=V4): 'V4,dev-type tun,link-mtu 1569,tun-mtu 1500,proto UDPv4,cipher AES-256-CBC,auth SHA256,keysize 256,key-method 2,tls-server'

Could not determine IPv4/IPv6 protocol
SIGHUP[soft,init_instance] received, process restarting
OpenVPN 2.4.5 mipsel-openwrt-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD]
library versions: OpenSSL 1.0.2o 27 Mar 2018, LZO 2.10

Pls try luochongjun’s method.