Dear all,

I have a kamailio running in version 5.0.8 and since fee weeks we have an issue with different users connected in TCP or TLS, sometimes authorization like for REGISTER are rejected and after a moment (can be few minute or hours) it work again and of course no change was done in the password ….

We see this issue with different device, snom swyx, …  and on UDP we have no issue.

I can see that when the Register is rejected it’s with the error -2, so wrong password…

# Authentication route

route[AUTH] {

        if (is_method("REGISTER"))

        {

                # authenticate requests

                if (!auth_check("$fd", "subscriber", "1")) {

                        switch($retcode) {

                                case -1:

                                        sl_send_reply("503","Service not available");

                                        exit;

                                case -2:

                                         xlog("L_WARN", "auth error -2 username $au - src ip: $si \n");

                                        auth_challenge("$fd", "0");

                                        exit;

I have attached an example of a trace where we can see a first REGISTER accepted and  less than 2 minutes after a new one is rejected. ( in between they is a REGISTER without any Authorization header)

Any idea ?

BR

Laurent