Thank you for your answer @RBzee, but that is exactly my question. When I connect to the hotel wifi, the website to login the hotel wifi does not pop-up. This happen in every Gl.inet router I use with the latest firmware version.
I do not understand the way you can make it with this website.
When I login to the admin panel, I try to get internet in the router by going to the internet option, then click on scan, select the hotel wifi or any other network that requires to login using a website to get internet, no windows pop-op. Navigating to http://www.alwayshttp.com wont work since the router does not have internet.
Once you connect to the hotel wifi using repeater mode, the browser will pop up the captive portal window automatically or, if the pop up doesn’t occur you can search for the hotel network gateway (for example 192.168.1.1, depending on the IP address shown in the hotel network properties in the router GUI window) and this normally will redirect you to the captive portal window. Another method is (once connected to the hotel network) to go to http://www.alwayshttp.com which will bring the captive portal window in case you haven’t logged in, otherwise you’ll see the page content.
One thing that you need to be aware of is that the gateway could be in the same IP range of the router (normally the router comes by default with the IP address 192.168.8.1 and it could be that the gateway is also with the range 192.168.8.X) which it could create conflict.