Firefox cannot connect to server

[thlint]

Please take a look at /etc/resolv.conf and see if it has the correct nameserver (= DNS) set.

lleszek
There are several resolv.conf   when I searched 

/etc/resolv.conf   only # comments  ( do not edit as will be overwritten)
/run/networkmanager/resolv.conf      nameserver = 127.0.1.1  (generated by networkmanager)
/run/resolvconf/resolv.conf                nameserver =127.0.1.1   (generated by resolv.conf)     

This looks like the problem ?    hopefully you have the solution

Dermot 

[wonder]

This is the content of /etc/resolv.conf :

Code:

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1

[leszek]

So it is using the dnsmasq DNS Resolving software by default. Thats why your local address 127.0.1.1 is in use here.
This seems not to work for you. So I suggest maybe trying not using dnsmasq.

You can do so by editing /etc/NetworkManager/NetworkManager.conf and commenting out (# is the character for comments) or remove the line

Code:

dns=dnsmasq

You can then restart the network-manager by executing

Code:

systemctl restart NetworkManager

This should make dns/nameserver resolving work again and it should put the real nameserver in /etc/resolv.conf again.
Hope this works for you.

[thlint]

I have manually changed the nameserver to 127.0.1.1 in /etc/resolv.conf disconnected wireless and re connected and I am pleased to say this reply is from Maui computer , Still have to switch off and reboot but this is a good start .
If problems persist after reboot i will look at your suggestion for editing networkmanager.conf re dns. and let you know how it went

Thanks so far, as I like Maui live cd - esp how easy it was to move around my internal LAN.
Dermot

[thlint]

leszek
All good with internet connection after reboot
Dermot