[Bug 1766969] [NEW] DNS cannot be resolved in Hotel Hotspot

[Pete]

Public bug reported:

I was asked to create a new bug for this in
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1727237 as it
seems to be a different issue.

I have installed the nightly image of Kubuntu Bionic from 25th of April.

There systemd is in version 237-3ubuntu10.

When connecting to the wifi hotspot in my hotel (Quality Hotel Augsburg)
I cannot open the hotspot landing page that should give me access to the
WIFI. With Windows and on an Iphone it's working.

For the following distributions I can confirm it not working:
Kubuntu 17.10
Kubuntu 18.04 (nightly image 25th of April 2018)

The logs were taken on 18.04.

Workaround:
sudo systemctl disable systemd-resolved.service
sudo service systemd-resolved stop
sudo rm /etc/resolv.conf
sudo nano /etc/NetworkManager/NetworkManager.conf
  >> add "dns=default" under [main]
sudo service network-manager restart

Then I can connect to the WIFI and I see the login page in Firefox.

To capture some data I did the following:
 - connect to Hotspot
 - enter golem.de

Case 1: Fresh default Kubuntu install
With a default Kubuntu install it does not work. I can connect to the WIFI and get IP and DNS from DHCP but I cannot resolve any hostname. When trying  to open the router ip directly in the browser it forwards to hotsplots.de which cannot be resolved.

Case 2: With aforementioned Workaround
I connect to the wifi, I open firefox and the login page shows up (if I havent been connected yet. In the capture I already was able to connect to the hotspot which allows immediately to connect to the webpage)

PS: I'll be in this hotel till Friday 27th if more information are
required.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: dns systemd systemd-resolv

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https://bugs.launchpad.net/bugs/1766969

Title:
  DNS cannot be resolved in Hotel Hotspot

Status in systemd package in Ubuntu:
  New

Bug description:
  I was asked to create a new bug for this in
  https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1727237 as it
  seems to be a different issue.

  I have installed the nightly image of Kubuntu Bionic from 25th of
  April.

  There systemd is in version 237-3ubuntu10.

  When connecting to the wifi hotspot in my hotel (Quality Hotel
  Augsburg) I cannot open the hotspot landing page that should give me
  access to the WIFI. With Windows and on an Iphone it's working.

  For the following distributions I can confirm it not working:
  Kubuntu 17.10
  Kubuntu 18.04 (nightly image 25th of April 2018)

  The logs were taken on 18.04.

  Workaround:
  sudo systemctl disable systemd-resolved.service
  sudo service systemd-resolved stop
  sudo rm /etc/resolv.conf
  sudo nano /etc/NetworkManager/NetworkManager.conf
    >> add "dns=default" under [main]
  sudo service network-manager restart

  Then I can connect to the WIFI and I see the login page in Firefox.

  To capture some data I did the following:
   - connect to Hotspot
   - enter golem.de

  Case 1: Fresh default Kubuntu install
  With a default Kubuntu install it does not work. I can connect to the WIFI and get IP and DNS from DHCP but I cannot resolve any hostname. When trying  to open the router ip directly in the browser it forwards to hotsplots.de which cannot be resolved.

  Case 2: With aforementioned Workaround
  I connect to the wifi, I open firefox and the login page shows up (if I havent been connected yet. In the capture I already was able to connect to the hotspot which allows immediately to connect to the webpage)

  PS: I'll be in this hotel till Friday 27th if more information are
  required.

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