This is what i got as a response in fiddler. No Proxy-Authorization Header is present. Authorization Header is present: NTLM 4E 54 4C 4D 53 53 50 00 03 00 00 00 18 00 18 00 NTLMSSP......... 88 00 00 00 88 01 88 01 A0 00 00 00 06 00 06 00 ˆ...ˆ.ˆ. ....... 58 00 00 00 0E 00 0E 00 5E 00 00 00 1C 00 1C 00 X.......^....... 6C 00 00 00 00 00 00 00 28 02 00 00 05 82 88 A2 l.......(....‚ˆ¢ 06 01 B1 1D 00 00 00 0F 1F 64 08 E3 8A A9 CC 7B ..±......d.㊩Ì{ 7E C9 ED 3D FB CD A2 7E 45 00 55 00 52 00 41 00 ~Éí=ûÍ¢~E.U.R.A. 44 00 43 00 58 00 50 00 38 00 38 00 4C 00 45 00 D.C.X.P.8.8.L.E. 31 00 31 00 4E 00 49 00 4D 00 42 00 38 00 56 00 1.1.N.I.M.B.8.V. 57 00 44 00 53 00 31 00 00 00 00 00 00 00 00 00 W.D.S.1......... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 4F DF A3 72 70 D9 4E 45 4D AA 89 FB 27 90 12 74 OߣrpÙNEMª‰û'.t 01 01 00 00 00 00 00 00 9D 06 28 57 1A 31 CE 01 .........(W.1Î. EA BC FB C0 0A 85 32 43 00 00 00 00 02 00 06 00 ê¼ûÀ.…2C........ 45 00 55 00 52 00 01 00 18 00 57 00 51 00 56 00 E.U.R.....W.Q.V. 53 00 50 00 41 00 56 00 59 00 44 00 4D 00 30 00 S.P.A.V.Y.D.M.0. 36 00 04 00 22 00 65 00 75 00 72 00 2E 00 62 00 6...".e.u.r...b. 6E 00 79 00 6D 00 65 00 6C 00 6C 00 6F 00 6E 00 n.y.m.e.l.l.o.n. 2E 00 6E 00 65 00 74 00 03 00 3C 00 57 00 51 00 ..n.e.t...<.W.Q. 56 00 53 00 50 00 41 00 56 00 59 00 44 00 4D 00 V.S.P.A.V.Y.D.M. 30 00 36 00 2E 00 65 00 75 00 72 00 2E 00 62 00 0.6...e.u.r...b. 6E 00 79 00 6D 00 65 00 6C 00 6C 00 6F 00 6E 00 n.y.m.e.l.l.o.n. 2E 00 6E 00 65 00 74 00 05 00 1A 00 62 00 6E 00 ..n.e.t.....b.n. 79 00 6D 00 65 00 6C 00 6C 00 6F 00 6E 00 2E 00 y.m.e.l.l.o.n... 6E 00 65 00 74 00 07 00 08 00 9D 06 28 57 1A 31 n.e.t......(W.1 CE 01 06 00 04 00 02 00 00 00 08 00 30 00 30 00 Î...........0.0. 00 00 00 00 00 00 00 00 00 00 00 20 00 00 84 8F ........... ..„ 59 77 D7 C1 7F B3 48 CF 72 EA AC F3 10 C6 3D 7D Yw×Á³HÏrê¬ó.Æ=} 86 0E DA D2 F5 8B D3 DF D5 FB 9C F1 72 C0 0A 00 †.ÚÒõ‹ÓßÕûœñrÀ.. 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 09 00 46 00 48 00 54 00 54 00 50 00 2F 00 ....F.H.T.T.P./. 77 00 71 00 76 00 73 00 70 00 61 00 76 00 79 00 w.q.v.s.p.a.v.y. 64 00 6D 00 30 00 36 00 2E 00 65 00 75 00 72 00 d.m.0.6...e.u.r. 2E 00 62 00 6E 00 79 00 6D 00 65 00 6C 00 6C 00 ..b.n.y.m.e.l.l. 6F 00 6E 00 2E 00 6E 00 65 00 74 00 00 00 00 00 o.n...n.e.t..... 00 00 00 00 00 00 00 00 ........ -[NTLM Type3: Authentication]------------------------------ Provider: NTLMSSP

The login screen comes up contiously even after I give my credencials. It just comes for three times and shows me 401. Error message. I don't think it has anything to do with my local IE as it works OK when we furnish the admin login of the server when it prompts for username and password I guess it is something to do with iis trying to access some folder. We gave everyone access to the physical folder for all the users but still no luck

Hi, We have a website which has been hosted in IIS7 and it runs with asp.net impersonation and windows authentication. we had been continously prompted with username and password when we are trying to access the website. it is accessible when we add an user as local admin on that server. we did the following but still no luck We gave file permission at the NTFS level for all the users. We also tried changing the windows authentication providers to NTLM. changed the website pool(classic asp.net one) to work with local service. Appreciate your help on this Any responses are much appreciated.