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John R. Graham
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Joined: 08 Mar 2005
Posts: 10732
Location: Somewhere over Atlanta, Georgia
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 Posted: Sat Oct 12, 2019 5:02 pm Post subject: Stupid Hotel Wireless |
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So I'm stuck in a hotel room today and would like to use their wireless. I'm using my main laptop which has successfully connected several wireless networks, but I'm getting some interesting symptoms here. wpa_supplicant negotiates a connection and I get an IP address from DHCP okay: | /var/log/messages chatter: | Oct 12 12:24:20 triton kernel: wlp2s0: authenticate with 88:dc:96:20:fd:2b
Oct 12 12:24:20 triton kernel: wlp2s0: send auth to 88:dc:96:20:fd:2b (try 1/3)
Oct 12 12:24:20 triton kernel: wlp2s0: authenticated
Oct 12 12:24:20 triton kernel: wlp2s0: associating with AP with corrupt beacon
Oct 12 12:24:20 triton kernel: wlp2s0: associate with 88:dc:96:20:fd:2b (try 1/3)
Oct 12 12:24:20 triton kernel: wlp2s0: RX AssocResp from 88:dc:96:20:fd:2b (capab=0x421 status=0 aid=1)
Oct 12 12:24:20 triton kernel: wlp2s0: associated
Oct 12 12:24:20 triton kernel: ath: EEPROM regdomain: 0x8348
Oct 12 12:24:20 triton kernel: ath: EEPROM indicates we should expect a country code
Oct 12 12:24:20 triton kernel: ath: doing EEPROM country->regdmn map search
Oct 12 12:24:20 triton kernel: ath: country maps to regdmn code: 0x3a
Oct 12 12:24:20 triton kernel: ath: Country alpha2 being used: US
Oct 12 12:24:20 triton kernel: ath: Regpair used: 0x3a
Oct 12 12:24:20 triton kernel: ath: regdomain 0x8348 dynamically updated by country element
Oct 12 12:24:20 triton dhcpcd[4974]: wlp2s0: carrier acquired
Oct 12 12:24:20 triton wpa_cli[6701]: interface wlp2s0 CONNECTED
Oct 12 12:24:20 triton wpa_cli[6704]: executing '/etc/init.d/net.wlp2s0 --quiet start' failed
Oct 12 12:24:20 triton dhcpcd[4974]: wlp2s0: IAID 09:48:db:55
Oct 12 12:24:21 triton dhcpcd[4974]: wlp2s0: rebinding lease of 172.17.100.59
Oct 12 12:24:21 triton dhcpcd[4974]: wlp2s0: probing address 172.17.100.59/16
Oct 12 12:24:21 triton dhcpcd[4974]: wlp2s0: soliciting an IPv6 router
Oct 12 12:24:26 triton dhcpcd[4974]: wlp2s0: leased 172.17.100.59 for 3600 seconds
Oct 12 12:24:26 triton dhcpcd[4974]: wlp2s0: adding route to 172.17.0.0/16
Oct 12 12:24:26 triton dhcpcd[4974]: wlp2s0: adding default route via 172.17.1.1
Oct 12 12:24:33 triton dhcpcd[4974]: wlp2s0: no IPv6 Routers available |
After that, the browser displays its typical "You must log in to this network before you can access the Internet" message. Clicking the "Open Network Login Page" button results in a failed connection. I can't ping nor manually access the default gateway either.
I know that my stack is generally working because I am currently connected to my phone's hot spot to post this message. Furthermore, two phones and one MacBook are successfully connected to the hotel wireless. How would I go about troubleshooting this?
- John
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I can confirm that I have received between 0 and 499 National Security Letters. |
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Hu
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Joined: 06 Mar 2007
Posts: 23091
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| Posted: Sat Oct 12, 2019 5:17 pm Post subject: |
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I would start by comparing the output of ip r with the equivalent (maybe route -n?) from the MacBook. Check that the working and non-working systems agree about how traffic should be routed, and to which gateway. As an unlikely, but easy to check issue, check that both systems use the same MTU. Check what exactly the browser tries to do when you click the Open Network Login Page button. Is the host it tries to access resolvable? (The network operator may be using a different host for the captive portal page vs for serving the later pages.) If it resolves, does the browser successfully negotiate TCP with it? Same question for TLS. If you can take the MacBook back to a starting state so that it is again challenged by the captive portal, use the developer tools on the MacBook's browser to check what happens when you Open Network Login Page there. How does that compare to what the Linux-hosted browser does?
Does the Linux browser have any security extensions that might conflict with this, such as NoScript, uBlock, etc.? Perhaps some key resources is blocked there, and the MacBook is not secured as tightly. |
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Fitzcarraldo
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Joined: 30 Aug 2008
Posts: 2056
Location: United Kingdom
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| Posted: Sat Oct 12, 2019 6:39 pm Post subject: |
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I'm probably wide of the mark in your case, but I've been in your situation in hotels around the World quite a few times, and what has, perhaps surprisingly, often worked for me is to try to open http://neverssl.com or https://www.youtube.com instead of clicking on the hotel's Open Network Login Page button. That usually then pulls up the hotel's network login page. Don't ask me why.
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54831
Location: 56N 3W
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| Posted: Sat Oct 12, 2019 7:50 pm Post subject: |
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John R. Graham,
I would use my mobile phone tethering.
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Regards,
NeddySeagoon
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