Forum Discussion

Star

Jun 18, 2022

Connection refused for certain websites - RBK853 V4.6.8.2

I cannot reach certain websites using my RBK853. It works fine if I connect the computer directly to the fiber media converter (or with mobile data), so the connection and websites are running fine, ...

CrimpOn

Guru - Experienced User

Jun 20, 2022

pemell wrote:

For example these two normal sites refuses to load with Chrome telling me "ERR_CONNECTION_REFUSED":

https://www.folksam.se

https://bygghemma.se

ERR_CONNECTION_REFUSED is a very specific error message which gives the impression that the browser was able to resolve the IP address of the web server and attempt to open a connection, but that the web server refused to allow the connection to complete. Internet search turned up a number of suggestions for how to resolve it:

https://kinsta.com/blog/err_connection_refused/#:~:text=The%20ERR_CONNECTION_REFUSED%20error%20is%20sometimes,incorrect%20firewall%20or%20server%20settings.

and

https://www.hostinger.com/tutorials/err_connection_refused

I noticed that when I attempted to resolve those URLs into IP addresses, there were a number of "timeouts" on my Orbi. Would it be convenient to verify that your laptops are able to resolve those two URLs into IP addresses?

What I got (eventually) was:

www.folksam.se 193.183.162.44
bygghemma.se 217.151.200.59

pemell

Star

Jun 20, 2022

Yes, laptops are able to resolve those two URLs into IP addresses.

This is me trying to telnet www.folksam.se:

$ telnet www.folksam.se 80
Trying 193.183.162.44...
telnet: Unable to connect to remote host: Connection timed out

Same goes for the other address bygghemma.se with "Connection timed out".

Now, circumventing the Orbi and trying to connect directly to the fiber media converter gives this successful result:

$ telnet www.folksam.se 80
Trying 193.183.162.44...
Connected to www.folksam.se.

That's why I think there must be something in the Orbi that blocks it 😕

CrimpOn
Guru - Experienced User
Jun 20, 2022
(except that this is consuming your life) What an interesting problem!

Those are both secure web sites (https), so I presume they accept connections on port 80 in order to redirect them to port 443.

Would you mind sharing the IP subnet that the fiber unit has assigned to the Orbi router, and the IP subnet that the Orbi has created for the LAN site?
- pemell
  Star
  Jun 20, 2022
  I'm unsure what you mean by IP subnet but the fiber unit assigned 100.72.124.114 with subnet mask 255.255.255.0 to the Orbi router and LAN address is 192.168.1.1 with subnet mask 255.255.255.0
  - CrimpOn
    Guru - Experienced User
    Jun 20, 2022
    pemell wrote:
    
    I'm unsure what you mean by IP subnet but the fiber unit assigned 100.72.124.114 with subnet mask 255.255.255.0 to the Orbi router and LAN address is 192.168.1.1 with subnet mask 255.255.255.0
    
    192.168.1.x is typical for a residential router LAN subnet. The 100.72.124.114 is definitely unusual. (i.e. it is not a typical 'private' IP
    
    https://en.wikipedia.org/wiki/Private_network )
    
    If the fiber unit will accept connection by a smartphone (i.e. WiFi), my assumption is that it is a combination media conversion/router/WiFi unit and that it would assign a private IP to the Orbi router.
    
    On the router's web interface, the Advanced Tab home page, when you click the blue box Connection Status, what does it show for "Default Gateway"?