I've managed to get my Android devices to get working internet connections with the TL-MR6400, after reading this discussion - https://community.tp-link.com/en/home/forum/topic/606790. Here's what I...

I also get the "Internet is unavailable" error when I go to the "Dynamic DNS" page, even though I have a working internet connection (i.e., I have this very same page opened on the tab next to it)....

I have a TL-MR6400 and recently I've switched my mobile plan to KPN, and I've noticed that after the switch, even though I get an internet connection with most devices, all Android phones do not get...

I have a TPLink TL-MR6400, and when I try to check for updates by going to "Advanced" tab, followed by "System tools" -> "Firmware Upgrade", when I click on the "Check for Upgrades" button, I get an...

I'm experiencing the exact same problem with a TP-Link TL-MR6400 with the same firmware and ISP versions. Also, I started experiencing this problem after switching to a mobile plan from KPN.