Hello , Kind reminder on the below. Regards, Ali From: Ali Taher [mailto:ataher@vanrise.com] Sent: Wednesday, May 11, 2016 7:01 PM To: 'Kamailio (SER) - Users Mailing List' &lt;sr-users(a)lists.sip-router.org&gt; Cc: 'Ali Taher~Vanrise Technical Support' &lt;ataher(a)vanrise.com&gt; Subject: Kamailio / issue with registration Hello, I installed Homer with kamailio as capture agent in order to capture sip packets. The first test I did was using the default kamailio.cfg config located in homer-docker directory , where all Register and Invite packets were saved in the database and I was able to monitor them from web homer. After that , I tried to enable registration using the save(location) function in registrar module , yet I'm getting the below error in the log : 2016-05-11T18:48:36.443231+03:00 ubuntu /usr/sbin/kamailio[4759]: ERROR: <core> [udp_server.c:550]: udp_send(): sendto(sock,0x7f64702b1d98,767,0,192.168.26.3:3806,16): Bad file descriptor(9) 2016-05-11T18:48:36.443239+03:00 ubuntu /usr/sbin/kamailio[4759]: ERROR: sl [../../forward.h:201]: msg_send_buffer(): udp_send failed 2016-05-11T18:48:36.443247+03:00 ubuntu /usr/sbin/kamailio[4759]: ERROR: registrar [reply.c:734]: reg_send_reply(): failed to send 200 OK Can you please help with resolving this issue , noting that the registration works good if I remove the routing logic set for sipcapture. Any hint would be appreciated. Cheers, Ali Taher