The R5C's 2.4GHz AP now uses the D-Link dongle wlxf4f26d1760a7 (the same dongle hosts/wan.conf lists — it moves between hosts) and a Wi-Fi WAN test dongle wlx200bd04dc756 is configured (not always attached; van-failover treats an absent device as "not present"). The tests no longer hardcode this host's hardware: assertions read the expected interface names from the host file (hv helper), and the "no Wi-Fi WAN" path (no wifis: stanza, `wifi WAN: none`) is covered with a synthetic copy of van.conf with WIFI_WAN_IFACE emptied. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KqhjP7nud5gdBg25zCiRk9