Unable to access tplink router configuration page 192.168.0.1

[hebbal12732]

Hi, I have a strange issue. I cannot access my routers configuration webpage. My computer IP address is 192.168.0.174. I have checked the following

1. Internet access --> works
2. Access router page from Windows 10 --> works
3. Ping --> works
4. Access from andriod phone --> works
5. Tried 3 different browsers, Firefox, Edge, Chrome --> None of them work.

I get the error "This site can’t be reached. 192.168.0.1 took too long to respond." When I try https://192.168.0.1/ I get this error. "This site can’t be reached192.168.0.1 refused to connect."

This has got something to do with Ubuntu 20.04 and http. Not sure where. Please help

[CharlesA]

Have you tried connecting over regular http? I've seen some routers that don't support HTTPS out of the box.

If ping is working, but you are unable to access the web GUI, you can try running curl from a terminal and see if you get a response or not.

See here:
https://unix.stackexchange.com/a/84820

[hebbal12732]

The tplink router supports only http. Even in Windows https does not work. http should have worked but... Tried with curl as well. Same issue. Is it because I have setup DNS in my router? I am using Open DNS server IPs. 208.67.222.222 · 208.67.220.220. It works on Windows. Why not Ubuntu? I have dual boot desktop that has Windows 10 & Ubuntu 20.04. When I login to windows my desktop ip is the same as mentioned above. This is something specific to Ubuntu or the browser settings

[CharlesA]

The tplink router supports only http. Even in Windows https does not work. http should have worked but... Tried with curl as well. Same issue. Is it because I have setup DNS in my router? I am using Open DNS server IPs. 208.67.222.222 · 208.67.220.220. It works on Windows. Why not Ubuntu? I have dual boot desktop that has Windows 10 & Ubuntu 20.04. When I login to windows my desktop ip is the same as mentioned above. This is something specific to Ubuntu or the browser settings

What message did you get when you tried curl? Can you post the output of the terminal?

You can select it with the mouse and then right click to copy IIRC.

[hebbal12732]

There is no response. Its stuck. See attachments

[CharlesA]

You missed a /.

curl -Is http://192.168.0.1

[hebbal12732]

Nope. Didnt worl. Something is blocking it. Firewall? All settings are default and my network type is set to home.

[CharlesA]

Take the | head -n 1 out and see if it is returning any errors. If it is not, try running this command and see what it shows:

traceroute 192.168.0.1

[The Cog]

It could be that the router is acception connections but can't process them for some reason (hence the browser is jsut hanging).
Try this to see if it's even accepting TCP connections:

nc -vz 192.168.0.1 80

I know it sounds trite, but have you tried turning it off and on again?

[hebbal12732]

curl and nc commands no response. traceroute successful. See attached screenshot.
Something is blocking the message from reaching the router. https reaches the router, but since it does not support https I get the connection refused error
BTW I did reboot the router multiple times. The fact that windows can connect tells me its something to do with Ubuntu only