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I recently upgraded to 12.04 and was delighted to find a simple button to start a wireless hotspot in Settings > Networks.

This is all well and good, however when I try and connect my android device (Samsung Galaxy Tab rooted with Ad-hoc support) the tablet gets stuck obtaining an IP address. It times out and then tries again to reconnect ad infinitum. I don't have this problem with Windows XP/Vista/7 (tried on all three) using ad hoc or connectify. I would use my windows 7 starter netbook to create my wireless hotspot, but unfortunately it died a terrible death.

Why is the android unable to obtain an IP address? How can I fix this? Any help would be great!

Fayaaz
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  • Do you have a DHCP server set up? Or can you try using a manual IP on Android? – nanofarad May 29 '12 at 15:07
  • I thought that Ubuntu would autoomatically act as a DHCP server and assign an IP address? – Fayaaz May 30 '12 at 13:16
  • Update: Once a windows machine is connected the Android connects, but none of them are able to access the internet. I live in student accommodation which only allows 1 computer to be registered to the network. The ubuntu laptop is the one registered. – Fayaaz May 30 '12 at 13:22
  • You may want to manually install a DHCP server set to listening on your ad-hoc connection. – nanofarad May 31 '12 at 11:53
  • hostapd/firestater/how do I go about this? – Fayaaz May 31 '12 at 17:31
  • @Fayaaz: The reason that neither one can connect is because the university has it configured that way. It's a common thing, they do packet inspection and check the number of hops it takes. Nothing you can do technically to get around it, sorry. :( – jrg Nov 03 '12 at 01:37

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