Buffering speeds from 6.6 to 0

Server Version#: 1.21.1.3876
Player Version#: different, from chromecast to android

the situation is as following.
i’ve got a pc with a ryzen 3700x 16gig DDR4 3600mhz a Zotac GTX 1070 8GB AMP edition videocard, and 3 SSD’s.

I’m trying to transcode an episode from 4K to 1080p.
The video starts fast and hardware transcoding works (plexpass and all options enabled and it shows in the dashboard and also shows up in plex Dash).

i want to watch the episodes on my chromecast in the bedroom, i placed a new accespoint nearby when i found out the connection might be limited. The buffering stayed.
i then tried the same on my oneplus 8 pro and saw that direct play showed no issues what so ever.
When i turned on transcoding by selecting 1080p high it showed exactly the same. buffering every few seconds.

when i enable verbose logging i can see the speed going from this:
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * Accept => /
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * Connection => keep-alive
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * Host => 127.0.0.1:32400
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * Icy-MetaData => 1
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * Range => bytes=0-
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * User-Agent => Lavf/58.27.104
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * X-Plex-Http-Pipeline => infinite
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * X-Plex-Token => xxxxxxxxxxxxxxxxxxxx
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * progress => 2.6
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * size => -22
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * remaining => 18509
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * vdec_packets => 3306
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * vdec_hw_ok => 3289
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * speed => 7.5
Jan 15, 2021 12:13:27.388 [18196] VERBOSE - * vdec_hw_status => 1

to this:
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * Accept => /
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * Connection => keep-alive
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * Host => 127.0.0.1:32400
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * Icy-MetaData => 1
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * Range => bytes=0-
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * User-Agent => Lavf/58.27.104
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * X-Plex-Http-Pipeline => infinite
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * X-Plex-Token => xxxxxxxxxxxxxxxxxxxx
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * progress => 2.6
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * size => -22
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * remaining => -1
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * vdec_packets => 3321
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * vdec_hw_ok => 3304
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * speed => 0.0
Jan 15, 2021 12:13:27.898 [18896] VERBOSE - * vdec_hw_status => 1

This just keeps repeating.

i can see the videocard doing something every now and then but i just dont get it…
This card should be able to do a couple of these transcoding similtanious.

some help would be appreciated.

furian

Just tried it again to see what happens…

it just stops every few seconds to buffer…

installed plux on my nu8i3 with a uhd 650.
the file played like it was original…

no going from 6 to 0.0 or anything just a stable speed of 3.5 …

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