[SR-Users] kamcli doesn't function

Hello all, I can't find any answer why my kamcli doesn't function. I'm using Kamailio 5.0.0 at the Debian Jessy 8.7 and it functions well. # kamctl ul show functions well but when I use kamcli I get error: # kamcli ul show 13(7452) ERROR: jsonrpcs [jsonrpcs_sock.c:542]: jsonrpc_dgram_send_data(): failed to send the response - ret: -1, len: 2443 (131072), err: 1 - Operation not permitted) (log): Timeout receiving response on unix sock The relevant parts of kamailio.cfg: #------------------------------------------------------------------------ #!define WITH_DEBUG #!define WITH_NAT #!define WITH_MYSQL #!define WITH_AUTH #!define WITH_USRLOCDB loadmodule "jsonrpcs.so" # ----- jsonrpcs params ----- modparam("jsonrpcs", "pretty_format", 1) /* set the path to RPC fifo control file */ modparam("jsonrpcs", "fifo_name", "/var/run/kamailio/kamailio_rpc.fifo") /* set the path to RPC unix socket control file */ modparam("jsonrpcs", "dgram_socket", "/var/run/kamailio/kamailio_rpc.sock") # ----- ctl params ----- modparam("ctl", "binrpc", "unix:/var/run/kamailio/kamailio_ctl") #-------------------------------------------------------------------------- # ll /var/run/kamailio/ total 0 srw------- 1 root root 0 Mar 22 11:36 kamailio_ctl prw-rw---- 1 root root 0 Mar 22 12:30 kamailio_rpc.fifo srw-rw---- 1 root root 0 Mar 22 11:36 kamailio_rpc.sock Can somebody tell me what is the problem? Thank you! Regards Marko