Not able to access internet when connected to VPN

[M0hanrajp]

• ubuntu client is connected to self hosted VPN access server.
• access server is installed from the link
• When connected to VPN, tun0 interface is up.

issue: ping google.com does not work.

Please help to provide suggestions if any

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Thanks

[novaflash]

This is what happens if DNS is misconfigured or blocked. You may be able to solve this by setting the DNS server that gets pushed to the VPN clients in the Admin UI to some public DNS server like 8.8.8.8 or so.

This is not a bug, this is a misconfiguration somewhere in your environment.

For support on deploying and connecting to OpenVPN Access Server, try the support team at https://support.openvpn.com/

Good luck.

[M0hanrajp]

@novaflash, Thanks for your response.
I have set the Admin UI to use the primary DNS server as 8.8.8.8 & secondary DNS server as 1.1.1.1,

Still not able to connect to internet

Any solutions for the below options error & warnings ?

Client side logs:

2025-05-26 20:23:39 us=535812 SENT CONTROL [OpenVPN Server]: 'PUSH_REQUEST' (status=1)
# assignment of Dns servers 
2025-05-26 20:23:39 us=535847 PUSH: Received control message: 'PUSH_REPLY,explicit-exit-notify,topology subnet,route-delay 5 30,dhcp-pre-release,dhcp-renew,dhcp-release,route-metric 101,ping 12,ping-restart 50,redirect-gateway def1,redirect-gateway bypass-dhcp,redirect-gateway autolocal,route-gateway 172.27.224.1,dhcp-option DNS 8.8.8.8,dhcp-option DNS 1.1.1.1,dhcp-option NBT 1,register-dns,block-ipv6,ifconfig 172.27.224.2 255.255.240.0,peer-id 0,auth-tokenSESS_ID,cipher AES-256-GCM'
# Warnings
2025-05-26 20:23:39 us=535931 Options error: Unrecognized option or missing or extra parameter(s) in [PUSH-OPTIONS]:4: dhcp-pre-release (2.5.11)
2025-05-26 20:23:39 us=535947 Options error: Unrecognized option or missing or extra parameter(s) in [PUSH-OPTIONS]:5: dhcp-renew (2.5.11)
2025-05-26 20:23:39 us=535957 Options error: Unrecognized option or missing or extra parameter(s) in [PUSH-OPTIONS]:6: dhcp-release (2.5.11)
2025-05-26 20:23:39 us=535971 WARNING: You have specified redirect-gateway and redirect-private at the same time (or the same option multiple times). This is not well supported and may lead to unexpected results
2025-05-26 20:23:39 us=536010 WARNING: You have specified redirect-gateway and redirect-private at the same time (or the same option multiple times). This is not well supported and may lead to unexpected results
2025-05-26 20:23:39 us=536077 Options error: Unrecognized option or missing or extra parameter(s) in [PUSH-OPTIONS]:17: register-dns (2.5.11)