I had a closer look at those bug reports. And I found other people[1] who mention that the patch from [2] is not enough. They use [3], which is a configurable variant of [4].
On the other hand, Stefan Metzmacher says in [5], that we should try Samba-3.5.8. Stefan Metzmacher is also the code reviewer from [2]. And I can confirm, that Ubuntu 11.04 with Samba-3.5.8~dfsg-1ubuntu1 runs out of the box within my freeradius infrastructure: $ ./rad_eap_test -H localhost -P 1812 -S Password123 -u 'DOMAIN\user' -p Password -m WPA-EAP -e PEAP access-accept; 0 [1]: https://bugzilla.samba.org/show_bug.cgi?id=6563#c47 [2]: https://bugzilla.samba.org/show_bug.cgi?id=7568 [3]: https://bugzilla.samba.org/show_bug.cgi?id=6563#c39 [4]: https://bugzilla.samba.org/show_bug.cgi?id=6563#c32 [5]: https://bugzilla.samba.org/show_bug.cgi?id=6563#c52 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/623342 Title: ntlm_auth returns invalid NT_KEY -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs