I was having the same problem as both of your earlier. I so started to read and sniffing packets. http://www.mail-archive.com/users@openser.org/msg00152.html That says the SER will take the domain from the FROM/URI, and when I looked at my packets the FROM/URI was correct, but the Contact was not. I had to move somethings around and I now run 'fix_nated_contact()' before I do my authentication. This fixed the problem for me. Even though SER debug says that is has the correct digest realm. It doesn't. Natambu Obleton Network Engineer FastTrack Communications nobleton(a)fasttrackcomm.net (970) 247-3366 office (970) 247-2426 fax _____ From: serusers-bounces(a)lists.iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of ram Sent: Thursday, August 31, 2006 12:10 AM To: Greger V. Teigre Cc: serusers(a)iptel.org Subject: Re: [Serusers] pre_auth(): Credentials with given realm not found Hi iam using Ser 0.8.14 is this bug in this version could some one confirm Ram On 8/31/06, Greger V. Teigre &lt;greger(a)teigre.com&gt; wrote: Sounds like a broken UA. g-) ram wrote: Hi all iam testing Voicemessages with Asterisk in the log i get frequently pre_auth(): Invalid nonce value received, very suspicious ! when i debug, i get the following message i have posted my config couple of day back 5(2213) get_hdr_field: cseq <CSeq>: <6> <REGISTER> 5(2213) DEBUG: is_maxfwd_present: value = 70 5(2213) parse_headers: flags=256 5(2213) DEBUG: get_hdr_body : content_length=0 5(2213) found end of header 5(2213) find_first_route(): No Route headers found 5(2213) loose_route(): There is no Route HF 5(2213) check_self - checking if host==us: 14==13 && [ mydomain.com <http://mydomain.com/> ] == [myipaddress] 5(2213) check_self - checking if port 5060 matches port 5060 5(2213) parse_headers: flags=-1 5(2213) parse_headers: flags=-1 5(2213) check_via_address(some ip address, some ip address, 0) 5(2213) check_self - checking if host==us: 14==13 && [ mydomain.com <http://mydomain.com/> ] == [myipaddress] 5(2213) check_self - checking if port 5060 matches port 5060 5(2213) parse_headers: flags=4096 5(2213) pre_auth(): Credentials with given realm not found 5(2213) build_auth_hf(): 'WWW-Authenticate: Digest realm=" mydomain.com <http://mydomain.com/> ", nonce="44f6ee623e15edb81a22dcec25ebe8c58b6e056d" ' _____ _______________________________________________ Serusers mailing list Serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers