This adapter is a classic piece of Wi-Fi hardware from the Haswell/Broadwell era (2013–2015). While it supports the critical 802.11ac standard (Wi-Fi 5), it is now considered a legacy device by Intel.
Return to Device Manager and ensure the card appears without a yellow warning triangle. Troubleshooting Tips intel dual band wireless-ac 7260 driver windows 11
Check that your router is not broadcasting on DFS channels (52–144). The AC 7260 has poor DFS support. Set your router to a non-DFS channel like 36, 40, 44, or 48. This adapter is a classic piece of Wi-Fi
Performance tuning and best practices
Obtaining drivers safely
