Wireless router has internet access through wired connection, but no internet access in wireless

[rapiergv]

Please help, I've been racking my brain for 2 days with this issue.

Wireless routers:
ASUS RT-AC68U (firmware up to date)
ASUS RT-AC87U (firmware up to date)

OS: Windows 10 (not sure if relevant)

The issue started 2 days ago - my PC, connected through an ethernet cable to the wireless router (AC68U) worked fine and had internet connection, but ALL devices connected wirelessly ceased to receive internet connection. To clarify: my wireless network is visible and can be connected to, but it does not have internet access.
After firmware update, multiple factory resets, reboots, checking with my ISP for potential changes / restrictions to the internet service, I simply gave up and went and bought a new router (AC87U). Same issues occured.

I also want to emphasize I'm pretty certain I've established the PPOE connection correctly, as I've done this a thousand times in the past, and because my PC's connection works flawlessly.

Everything WAN-related is Enabled in the dashboard.

I am clueless to what I should try next. Any advice is greatly appreciated.

Not sure if it helps, but here is a pastebin with ipconfig /all and here is a screenshot of the WAN configuration

Also not sure if relevant, but lately (last 2 months or so), I get a warning when running the "Troubleshoot Issues" command on the network icon in my traybar. It says "Windows could not automatically detect this network's proxy settings". This is also super annoying, I've tried everything I found online:
netsh int ip reset resetlog.txt
netsh winsock reset
netsh int ipv4 reset

Thank you in advance for any tips/opinions, I would be glad to post additional details as requested.

 

[das_stig]

1. Asus firmware is good, but Merlins version is far better.
2. 87U should be your primary router as it is superior.
3. Latest NIC drivers.

 

[rapiergv]

1. Asus firmware is good, but Merlins version is far better.
2. 87U should be your primary router as it is superior.
3. Latest NIC drivers.

Thanks for weighing in!

1. I didn't know about the Merlin version, I'll definitely google that
2. 87U is definitely my primary router, bought it to replace 68U
3. It says my drivers are up to date. But either way, I don't think that would be the issue honestly, as I have trouble with devices like my phone, TV, consoles, that are connecting to the router but not getting Internet access

If you have any additional thoughts that I can try out I'd be more than glad to do so

 

[creativedan]

Did you solve this? If yes how as you are exactly describing my issues!