Server Version#: 1.15.4.993
Player Version#: 3.95.2
Transcoding fails (and playback wont even start) for several movies with no clear pattern whatsoever. I tried reading the log myself but was unable to find the problem. Plex Media Server Logs_2019-05-01_18-29-43.zip (3.1 MB)
I also searched for this problem on the forums but found no solution.
Part of the problem is DNS rebinding protection in the router. It’s blocking server-client connections. (Plex uses names instead of IP addresses as part of private domain plex.direct)
You need to allow this exception (write a rule) in your DNS forwarder/ resolver to allow private domain plex.direct
May 01, 2019 15:33:37.564 [0x7fbdf27fc700] ERROR - Error issuing curl_easy_perform(handle): 7
May 01, 2019 15:33:37.564 [0x7fbdf27fc700] WARN - HTTP error requesting GET https://37-135-190-220.ff35520b3c1b4437a69f9e30f713fb1f.plex.direct:28104 (0, No error) (Failed to connect to 37-135-190-220.ff35520b3c1b4437a69f9e30f713fb1f.plex.direct port 28104: No route to host)
May 01, 2019 15:33:37.577 [0x7fbdf3fff700] ERROR - Error issuing curl_easy_perform(handle): 51
May 01, 2019 15:33:37.577 [0x7fbdf3fff700] WARN - HTTP error requesting GET https://192-168-1-26.c6899ae9fb1a4dd2a2240e33bbfde2c0.plex.direct:32400 (0, No error) (SSL: no alternative certificate subject name matches target host name '192-168-1-26.c6899ae9fb1a4dd2a2240e33bbfde2c0.plex.direct')
May 01, 2019 15:33:37.580 [0x7fbdf37fe700] ERROR - Error issuing curl_easy_perform(handle): 51
May 01, 2019 15:33:37.580 [0x7fbdf37fe700] WARN - HTTP error requesting GET https://172-17-0-1.c6899ae9fb1a4dd2a2240e33bbfde2c0.plex.direct:32400 (0, No error) (SSL: no alternative certificate subject name matches target host name '172-17-0-1.c6899ae9fb1a4dd2a2240e33bbfde2c0.plex.direct')
May 01, 2019 15:33:37.582 [0x7fbe61ffb700] ERROR - Error issuing curl_easy_perform(handle): 51
May 01, 2019 15:33:37.582 [0x7fbe61ffb700] WARN - HTTP error requesting GET https://95-23-159-26.c6899ae9fb1a4dd2a2240e33bbfde2c0.plex.direct:6969 (0, No error) (SSL: no alternative certificate subject name matches target host name '95-23-159-26.c6899ae9fb1a4dd2a2240e33bbfde2c0.plex.direct')