Ubuntu 16.04 - Inactivity timeout (--ping-exit), exiting

[56Kmodem 3]

edit: It works again. Have nothing changed. I think it was some hickups from hoster/airvpn or routing.

Hello,

I am still investigating this, maybe someone knows already what it could be.

OS: Ubuntu 16.04
No firewall configured. I have uninstalled fail2ban in case it blocks anything.

Problem:

My python script was working for months without any problems - all of the sudden it gets a ping timeout when I try to connect to any Airvpn server with netlock enabled (error log is attached)

I tested without '--netlock' and it is working immediately. I have not touched the server in any way. All of the sudden it just stopped working. The server generates a lot of traffic for the hoster, but I pay a bit more for unlimited bandwidth. At first I thought airvpn got rid of the server Ogma, but when I try without netlock it works.

my startup script (python):

os.chdir('/home/eddie-cli_2.16.3_linux_x64_portable/')
print('[+] Start eddie script.')
try:
    os.system("./eddie-cli --login=user_login --password=user_password --netlock --connect --server=Ogma >> airvpn.log &")
except Exception as Error:
    print('ERROR')
    print(Error)
print('[+] eddie script done.')

error log:
 

I 2020.01.10 23:11:18 - Checking authorization ...
! 2020.01.10 23:11:18 - Connecting to Ogma (Germany, Frankfurt)
. 2020.01.10 23:11:18 - OpenVPN > OpenVPN 2.4.6 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Apr 27 2018
. 2020.01.10 23:11:18 - OpenVPN > library versions: OpenSSL 1.1.0h  27 Mar 2018, LZO 2.10
. 2020.01.10 23:11:18 - Connection to OpenVPN Management Interface
. 2020.01.10 23:11:18 - OpenVPN > MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:3100
. 2020.01.10 23:11:18 - OpenVPN > Outgoing Control Channel Encryption: Cipher 'AES-256-CTR' initialized with 256 bit key
. 2020.01.10 23:11:18 - OpenVPN > Outgoing Control Channel Encryption: Using 256 bit message hash 'SHA256' for HMAC authentication
. 2020.01.10 23:11:18 - OpenVPN > Incoming Control Channel Encryption: Cipher 'AES-256-CTR' initialized with 256 bit key
. 2020.01.10 23:11:18 - OpenVPN > Incoming Control Channel Encryption: Using 256 bit message hash 'SHA256' for HMAC authentication
. 2020.01.10 23:11:18 - OpenVPN > TCP/UDP: Preserving recently used remote address: [AF_INET]185.189.112.21:443
. 2020.01.10 23:11:18 - OpenVPN > Socket Buffers: R=[133120->133120] S=[133120->133120]
. 2020.01.10 23:11:18 - OpenVPN > UDP link local: (not bound)
. 2020.01.10 23:11:18 - OpenVPN > UDP link remote: [AF_INET]185.189.112.21:443
. 2020.01.10 23:11:18 - OpenVPN > MANAGEMENT: Client connected from [AF_INET]127.0.0.1:3100
. 2020.01.10 23:11:51 - OpenVPN > [UNDEF] Inactivity timeout (--ping-exit), exiting
. 2020.01.10 23:11:51 - OpenVPN > SIGTERM received, sending exit notification to peer
. 2020.01.10 23:11:56 - OpenVPN > SIGTERM[soft,exit-with-notification] received, process exiting

Iptables:
 

sudo iptables -L

Chain INPUT (policy ACCEPT)
target     prot opt source               destination
f2b-sshd   tcp  --  anywhere             anywhere             multiport dports ssh
f2b-sshd   tcp  --  anywhere             anywhere             multiport dports ssh

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain f2b-sshd (2 references)
target     prot opt source               destination
RETURN     all  --  anywhere             anywhere
RETURN     all  --  anywhere             anywhere