I think you are find a router to support VPN Client feature, unfortunately tp-link router don't support

so it is just working fine

you can click on 5G in blue, and it will turn yellow hah..

it depends on many reasons, such as authenticate server, I think. I own a travel router as well, some hotels it work, some are not, I mean hotels wifi with captive portal. If it work, I can open a...

some wifi analyzer software has this value displayed

enable igmp snooping/proxy and have anothe try?