Would appreciate if you can offer any kind of help? We are totally stuck at this point. As mentioned earlier, we are trying to use the test certificate provided along with the sdk.

We have tried that.. When we try to send hex value in place of strings, we have noticed below error {"fairplay-streaming-response":{"create-ckc":[{"id":1,"status":-42605}]}} Also in case of Live, where offline-hls block will not be present, we are still noticing above error. This is looks to be some error related to certificate. As mentioned earlier, client application is making a certificate call where we are returning the test certificates provided along with the SDK (test_fps_certificate_v26.bin). These certificates are already configured in the credentials path. Also note that the test samples provided with the SDK return valid license response.

Thanks for the sugegstions I ran the curl with -v option [azuki@AlmaDevVM Key_Server_Module]$ curl -v -d @Test_Inputs/iOS/spc_v3_ios_uhd_no_lease_2048.json localhost:8080/fps * Trying ::1:8080... * Connected to localhost (::1) port 8080 (#0) > POST /fps HTTP/1.1 > Host: localhost:8080 > User-Agent: curl/7.76.1 > Accept: */* > Content-Length: 5947 > Content-Type: application/x-www-form-urlencoded > * Empty reply from server * Closing connection 0 curl: (52) Empty reply from server [azuki@AlmaDevVM Key_Server_Module]$ Also when I checked httpd logs I do see a couple of errors. [DEBUG] ❌ Assertion failure: paramErr (-42585) [src/parse_certificates.swift:36] src/parse_certificates.swift:13: Fatal error: 'try!' expression unexpectedly raised an error: src.FPSStatus.paramErr [Thu Jan 22 04:17:30.168292 2026] [core:notice] [pid 1004898:tid 1004898] AH00051: child pid 1009053 exit signal Illegal instruction (4), possible coredump in /etc/httpd timestamp="2026-01-22 04:18:01,830",FP_TOOLN="fpssdk",FP_TOOLV="26.0.0",FP_PID="1021431",FP_FL="parse_certificates.swift",FP_LN="35",FP_ERRCODE="-42585",Error reading certificate file (../credentials/test_certificates.json): Error Domain=NSCocoaErrorDomain Code=260 "The file doesn’t exist."UserInfo={NSUnderlyingError=Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory", NSURL=../credentials/test_certificates.json -- file:///home/azuki/, NSFilePath=/home/credentials/test_certificates.json} [DEBUG] ❌ Assertion failure: paramErr (-42585) [src/parse_certificates.swift:36] src/parse_certificates.swift:13: Fatal error: 'try!' expression unexpectedly raised an error: src.FPSStatus.paramErr [Thu Jan 22 04:18:03.204641 2026] [core:notice] [pid 1004898:tid 1004898] AH00051: child pid 1021431 exit signal Illegal instruction (4), possible coredump in /etc/httpd timestamp="2026-01-27 15:05:22,145",FP_TOOLN="fpssdk",FP_TOOLV="26.0.0",FP_PID="1021588",FP_FL="parse_certificates.swift",FP_LN="35",FP_ERRCODE="-42585",Error reading certificate file (../credentials/test_certificates.json): Error Domain=NSCocoaErrorDomain Code=260 "The file doesn’t exist."UserInfo={NSUnderlyingError=Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory", NSURL=../credentials/test_certificates.json -- file:///home/azuki/, NSFilePath=/home/credentials/test_certificates.json} [DEBUG] ❌ Assertion failure: paramErr (-42585) [src/parse_certificates.swift:36] src/parse_certificates.swift:13: Fatal error: 'try!' expression unexpectedly raised an error: src.FPSStatus.paramErr [Tue Jan 27 15:05:23.587233 2026] [core:notice] [pid 1004898:tid 1004898] AH00051: child pid 1021588 exit signal Illegal instruction (4), possible coredump in /etc/httpd timestamp="2026-01-27 15:06:10,198",FP_TOOLN="fpssdk",FP_TOOLV="26.0.0",FP_PID="1182129",FP_FL="parse_certificates.swift",FP_LN="35",FP_ERRCODE="-42585",Error reading certificate file (../credentials/test_certificates.json): Error Domain=NSCocoaErrorDomain Code=260 "The file doesn’t exist."UserInfo={NSUnderlyingError=Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory", NSFilePath=/home/credentials/test_certificates.json, NSURL=../credentials/test_certificates.json -- file:///home/azuki/} [DEBUG] ❌ Assertion failure: paramErr (-42585) [src/parse_certificates.swift:36] src/parse_certificates.swift:13: Fatal error: 'try!' expression unexpectedly raised an error: src.FPSStatus.paramErr [Tue Jan 27 15:06:11.639857 2026] [core:notice] [pid 1004898:tid 1004898] AH00051: child pid 1182129 exit signal Illegal instruction (4), possible coredump in /etc/httpd timestamp="2026-01-27 15:07:13,904",FP_TOOLN="fpssdk",FP_TOOLV="26.0.0",FP_PID="1009073",FP_FL="parse_certificates.swift",FP_LN="35",FP_ERRCODE="-42585",Error reading certificate file (../credentials/test_certificates.json): Error Domain=NSCocoaErrorDomain Code=260 "The file doesn’t exist."UserInfo={NSFilePath=/home/credentials/test_certificates.json, NSURL=../credentials/test_certificates.json -- file:///home/azuki/, NSUnderlyingError=Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"} [DEBUG] ❌ Assertion failure: paramErr (-42585) [src/parse_certificates.swift:36] src/parse_certificates.swift:13: Fatal error: 'try!' expression unexpectedly raised an error: src.FPSStatus.paramErr [Tue Jan 27 15:07:15.708569 2026] [core:notice] [pid 1004898:tid 1004898] AH00051: child pid 1009073 exit signal Illegal instruction (4), possible coredump in /etc/httpd I hope this helps to understand what might be the issue.

I have confirmed that server is running. I am able to get version [azuki@AlmaDevVM ~]$ cd server_setup/FairPlay_Streaming_Server_SDK_26/FairPlay_Streaming_Server_SDK_26/Development/Key_Server_Module/ [azuki@AlmaDevVM Key_Server_Module]$ ls credentials parse_fps Rust Swift Test_Inputs [azuki@AlmaDevVM Key_Server_Module]$ curl localhost:8080/fps/v 26.0.0 I had tried few more requests and i noticed same response for all [azuki@AlmaDevVM Key_Server_Module]$ curl -d @Test_Inputs/iOS/spc_ios_hd_lease_2048.json localhost:8080/fps curl: (52) Empty reply from server [azuki@AlmaDevVM Key_Server_Module]$ curl -d @Test_Inputs/tvOS/spc_tvos_get_client_info_1024.json localhost:8080/fps curl: (52) Empty reply from server [azuki@AlmaDevVM Key_Server_Module]$ curl -d @Test_Inputs/iOS/spc_v3_ios_uhd_no_lease_2048.json localhost:8080/fps curl: (52) Empty reply from server [azuki@AlmaDevVM Key_Server_Module]$

Tried this. Now I see curl: (52) Empty reply from server curl -d @Test_Inputs/iOS/spc_ios_hd_lease_2048.json localhost:8080/fps curl: (52) Empty reply from server [azuki@AlmaDevVM Key_Server_Module]$ Any further help would be highly appreciated. Is it specific to this OS? Any other working reference would be helpful.

[azuki@AlmaDevVM Key_Server_Module]$ ps -aef | grep httpd root 1004896 1 0 Jan21 ? 00:00:00 sudo httpd -D FOREGROUND root 1004898 1004896 0 Jan21 ? 00:00:01 httpd -D FOREGROUND apache 1009052 1004898 0 Jan21 ? 00:00:00 httpd -D FOREGROUND apache 1009054 1004898 0 Jan21 ? 00:00:06 httpd -D FOREGROUND apache 1009073 1004898 0 Jan21 ? 00:00:06 httpd -D FOREGROUND apache 1021431 1004898 0 04:17 ? 00:00:00 httpd -D FOREGROUND apache 1021493 1004898 0 04:17 ? 00:00:00 httpd -D FOREGROUND azuki 1021571 1021387 0 04:17 pts/1 00:00:00 grep --color=auto httpd [azuki@AlmaDevVM Key_Server_Module]$ curl -d @Test_Inputs/iOS/spc_ios_hd_lease_2048.json localhost:8080/fps curl: (52) Empty reply from server [azuki@AlmaDevVM Key_Server_Module]$ With this, I see empty re[ply now