Hi, I have a question concerning registration. If my UA performs a successful registration and during contact update it sends first REGISTER request with the Authorization header already present with new nonce and response params, will ser respond with 401 or OK. Will functions such us radius_www_authenticate("$fd.digest_realm"); and www_authenticate("$td.digest_realm", "credentials"); return success?? BTW how is the avp fd.digest_realm set? Now when we try to do this ser responds with 401. Is this correct? Kind regards Tomasz