@Ihsan_H If you put the ISP router in bridge mode you can use one of your Deco units as a router straight away because they support router mode. If you insist to have a separate router in your...

@Jarro You can switch out modem and network input without doing the whole setup from scratch. If the ISP device can be set in bridge mode (modem only) you can continue to use your old setup as it is....

@DanielDT Your TL-WA850RE DHCP server is turned off in the current configuration. You won't be able to connect to the TL-WA850RE if it's not connected to the main router. To access the TL-WA850RE...

@aliciavr6 Make sure that you're with the latest FW release on your EAP. Use a different browser to adopt EAP and check if there's a difference. Here are some steps you can try as well.

@JACCUZI Here's what you can do if you forgot your router login password. If you forgot your router wireless password use this guide.

@aliciavr6 This is the official guide for this type of issues - I believe your issue is the first scenario.