Hi Federico, Thanks for the response! My apologies, I ended up with Version 5, moving to 4.4 fixes my issues. Sorry for noise and thanks for help. Jon From: federico.cabiddu(a)gmail.com Date: Fri, 23 Sep 2016 07:26:11 +0200 To: sr-users(a)lists.sip-router.org Subject: Re: [SR-Users] failed to find command http_async_query - Even though module loaded Hi,are you sure that on server 2 you are running 4.4 branch?The three params version of the query has been removed in master in this commit https://github.com/kamailio/kamailio/commit/61adc6e16c73070bd3f8a9a04efa182… the query's body is now done through the $http_req pseudovariable, for uniformity of the interface.What does kamailio -v show on that server? Cheers, Federico On Thu, Sep 22, 2016 at 11:34 PM, Jonathan Hunter <hunterj91(a)hotmail.com> wrote: Hi guys, I am using the http_async_client module to POST some requests to a Web Interface, and on server 1 it all works well. I have done a fresh install from github, version 4.4 on Centos 6.8 on server 2, and kamailio wont start. Its the same configuration file, however it states; failed to find command http_async_query (params 3) However the module is loaded, and when installing no errors were written when creating the module, and in terms of its links they are below and look ok to me. Is there anywhere else I should be looking? Thanks Jon ldd http_async_client.so linux-vdso.so.1 => (0x00007ffecedf1000) libcurl.so.4 => /usr/lib64/libcurl.so.4 (0x00007fdc5bd63000) libevent-2.0.so.5 => /usr/lib64/libevent-2.0.so.5 (0x00007fdc5bb1c000) libsrutils.so.1 => /usr/local/kamailio-4.4/lib64/kamailio/libsrutils.so.1 (0x00007fdc5b90c000) libkcore.so.1 => /usr/local/kamailio-4.4/lib64/kamailio/libkcore.so.1 (0x00007fdc5b6ff000) libc.so.6 => /lib64/libc.so.6 (0x00007fdc5b36a000) libidn.so.11 => /lib64/libidn.so.11 (0x00007fdc5b138000) libldap-2.4.so.2 => /lib64/libldap-2.4.so.2 (0x00007fdc5aee7000) librt.so.1 => /lib64/librt.so.1 (0x00007fdc5acde000) libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007fdc5aa9a000) libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007fdc5a7b3000) libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007fdc5a586000) libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007fdc5a382000) libz.so.1 => /lib64/libz.so.1 (0x00007fdc5a16c000) libssl3.so => /usr/lib64/libssl3.so (0x00007fdc59f28000) libsmime3.so => /usr/lib64/libsmime3.so (0x00007fdc59cfb000) libnss3.so => /usr/lib64/libnss3.so (0x00007fdc599bb000) libnssutil3.so => /usr/lib64/libnssutil3.so (0x00007fdc5978e000) libplds4.so => /lib64/libplds4.so (0x00007fdc5958a000) libplc4.so => /lib64/libplc4.so (0x00007fdc59385000) libnspr4.so => /lib64/libnspr4.so (0x00007fdc59146000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fdc58f29000) libdl.so.2 => /lib64/libdl.so.2 (0x00007fdc58d25000) libssh2.so.1 => /usr/lib64/libssh2.so.1 (0x00007fdc58afc000) libm.so.6 => /lib64/libm.so.6 (0x00007fdc58878000) /lib64/ld-linux-x86-64.so.2 (0x00007fdc5c1f8000) liblber-2.4.so.2 => /lib64/liblber-2.4.so.2 (0x00007fdc58668000) libresolv.so.2 => /lib64/libresolv.so.2 (0x00007fdc5844e000) libsasl2.so.2 => /usr/lib64/libsasl2.so.2 (0x00007fdc58234000) libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007fdc58028000) libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007fdc57e25000) libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007fdc57bb8000) libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007fdc577d4000) libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007fdc5759d000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007fdc5737d000) libfreebl3.so => /lib64/libfreebl3.so (0x00007fdc5717a000) _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users