@OscarD,

If your ISP-provided gateway provides an internet connection, then you will need to do one of two things either:

• Disable the Wi-Fi network from your ISP device by enabling IP passthrough / Bridge Mode or

• Change the operating mode of your archer A7 to AP mode. Keep in mind that this removes many of the management features from the Archer, as the Gateway provided by your ISP will be in charge of managing the network's connection.

Currently, it sounds as though you may have two routers operating on your network, which means that you also have two DHCP servers assigning IP addresses to devices. While a connection can be achieved in a setup like this, disconnects will always happen. Did your ISP gateway always provide its own Wi-Fi? There may have been an update to your modem that reenabled the routing functionality if it did not.