Always perform firmware updates via an Ethernet cable . Updating over Wi-Fi is risky because a signal drop can "brick" the router.
Download the latest firmware file provided, ensuring the release date is the most recent. tp-link archer c5 v4 latest firmware download
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Always perform firmware updates via an Ethernet cable