NVIDIA hardware acceleration inconsistently working with web streaming

Plex Media Server Desktops & Laptops
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Logs for these tests start around 11:50am 12:27pm

Nvidia Driver: 525.60.13
PMS 1.31.1.6638
nvdecExtraFrames=2
Kernel: 5.15.0-58-generic
GPU: Nvidia Tesla P4

Playback Quality: 20mbps 1080p

nvdecExtraFrames=2
Test 1: Fail (CPU encoding)
Test 2: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 3: Fail
Test 4: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 5: Fail (Error code: s1001 (Network))

nvdecExtraFrames=4
Test 1: Fail (CPU encoding)
Test 2: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 3: Fail
Test 4: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 5: Fail (Decodes on CPU, Encodes on GPU, completely fails at 1080px20mbps: Error code: s1001 (Network))

nvdecExtraFrames=6
Test 1: Fail (CPU encoding)
Test 2: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 3: Fail
Test 4: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 5: Fail (Decodes on CPU, Encodes on GPU, completely fails at 1080px20mbps: Error code: s1001 (Network))

nvdecExtraFrames=8
Test 1: Fail (CPU encoding)
Test 2: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 3: Fail
Test 4: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 5: Fail (Decodes on CPU, Encodes on GPU, completely fails at 1080px20mbps: Error code: s1001 (Network))

nvdecExtraFrames=16
Test 1: Fail (CPU encoding)
Test 2: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 3: Fail
Test 4: Fail (Was transcoding on GPU at max convert, failed to transcode 1080px20mbps)
Test 5: Fail (Decodes on CPU, Encodes on GPU, completely fails at 1080px20mbps: Error code: s1001 (Network))

For the Test 5 when switching to 1080px20mbps, I am receiving a few errors:

  • [Req#7126/Transcode/3iobezh2q8rw407bjpbp1m1y/6736ac51-7e25-4cc8-a5fd-a85765fd75e3] [vp9 @ 0x7f27b69cb700] Failed setup for format cuda: hwaccel initialisation returned error.
  • [Req#7113/Transcode/3iobezh2q8rw407bjpbp1m1y/6736ac51-7e25-4cc8-a5fd-a85765fd75e3] [vp9 @ 0x7f27b69cb700] Hardware is lacking required capabilities

These errors go along with the understanding that the GPU doesn’t support VP9 10bit, which is why it decodes on CPU originally.