Hello Luis,

the error ENETUNREACH generally indicates that the network is unreachable from your device. Given the context you've provided, here are some suggestions and questions:

Check APN settings: The APN settings you provided seem to be specific to Vivo in Brazil. However, you should double-check these settings with Vivo's official documentation or by contacting Vivo's customer support. They might have different or additional configurations.

Try different DNS servers: Sometimes the DNS servers might be the culprit. Try to change your DNS settings to Google's DNS servers like follows.

[ipv4]

dns=8.8.8.8;8.8.4.4;

method=auto

[ipv6]

dns=2001:4860:4860::8888;2001:4860:4860::8844;

method=auto

ICMP & TCP/UDP: Being able to ping google.com means that ICMP traffic is going through, but it doesn't necessarily mean that TCP/UDP traffic is passing. It might be worth checking if other types of traffic (like HTTP or HTTPS) can go through.

Local Firewall and Network Configuration: Ensure that there's no firewall or network configuration on your local setup that's blocking outbound connections on specific ports. The error message indicates an issue with port 443, which is commonly used for HTTPS. Ensure port 443 is allowed for outgoing traffic.

Network Diagnostics: Running some network diagnostic commands can provide further insights for us:

• route -n: To see if the default route is set correctly.
• ifconfig: To check the assigned IP address and ensure the device is getting a proper IP.
• traceroute 8.8.8.8: To check if there's a specific point where the traffic is getting blocked.

Let's try to find a solution with these approaches. Please provide us as much feedback as possible on the above points and most importantly the exact type of PCIe card you are using.

BR