Hi. Finally!!! I got it working!!! The only thing i did was to replace server's builtin 3Com Gigabit network card with SMC1255(100Mb. I tried to force settings of 3Com -- to half duplex mode, or to other speed -- but it did not let me exceed autodetection, and autodetection was half duplex/100Mb. I still can not figure out, why such low-level hardware replacement cured such high-level software problems -- but this makes no matter for me right now, since it works, and it works fine.
Special thanks to Dragan Krnic, who was almost the only one trying to help me on this list. Dendik. PS. I confirm: recent WinXP's do not require either RequireSignOrSeal, or mmc, or WebClient service, or EAP patches. (Though some of these patches -- e.g. group policies in mmc and one of registry patches, which Dragan sent me -- are useful for making things smoother) -- To unsubscribe from this list go to the following URL and read the instructions: http://lists.samba.org/mailman/listinfo/samba