I have an Opta Lite and have been having issues using Ethernet on a local LAN with no Internet connectivity. Using Wireshark I have identified what I believe is an issue with the Ethernet library for Opta when using DHCP because it does not use the DHCP supplied DNS server. As an example the code …

SocketWrapper - use DNS of specific netif, not global arduino:main ← JAndrassy:lwip_dns_fix opened 08:48PM - 05 Mar 24 UTC [JAndrassy] JAndrassy…

Ethernet DHCP issue

Juraj March 5, 2024, 6:35pm 3

if you use begin with static IP setting, DHCP will be off.

are you on Mbed Core 4.1.1?

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