Are you having Stuttering/Buffering Issues? Look Here

I just wanted to add that I’m experiencing the same as DrMagicWolf and noellees. I hope this get’s resolved soon as it is rather frustrating.

This started happening to me today on my Chromecast 2/2015. Never had an issue on it before, or previously on my Chromecast 1. I believe I’ve fixed it (see below).

Steps taken:
Rebooted server (i5-2500k, 8 GB RAM)
Rebooted Xbox One (Chromecast 2 goes through its HDMI)
Rebooted Chromecast
Rebooted TM-AC1900 router
Examined router clients, no one hijacking connection, no great amount of traffic
Changed CPU settings in PMS to “Make It Hurt”
I even tried watching a movie that I watched 2 days ago with no issues
Plugged Chromecast directly to TV.

I did not disable encryption in PMS, though I read that might be a fix.

Note: at no time did viewing on iPhone 6s+ suffer, even at 40 Mbps. However, Chromecast 2 was stuttering even at 720p.

What worked for me:
Disabled Direct Stream and Direct Play in Plex iOS app’s Advanced settings. I had to close the app (dismiss via multitasking view) and reopen for the change in settings to take effect.
Gone back to 40 Mbps/Unlimited view on Chromecast 2 and having no further issues.

HTH someone.

@mrwufpack said:
This started happening to me today on my Chromecast 2/2015. Never had an issue on it before, or previously on my Chromecast 1. I believe I’ve fixed it (see below).

Steps taken:
Rebooted server (i5-2500k, 8 GB RAM)
Rebooted Xbox One (Chromecast 2 goes through its HDMI)
Rebooted Chromecast
Rebooted TM-AC1900 router
Examined router clients, no one hijacking connection, no great amount of traffic
Changed CPU settings in PMS to “Make It Hurt”
I even tried watching a movie that I watched 2 days ago with no issues
Plugged Chromecast directly to TV.

I did not disable encryption in PMS, though I read that might be a fix.

Note: at no time did viewing on iPhone 6s+ suffer, even at 40 Mbps. However, Chromecast 2 was stuttering even at 720p.

What worked for me:
Disabled Direct Stream and Direct Play in Plex iOS app’s Advanced settings. I had to close the app (dismiss via multitasking view) and reopen for the change in settings to take effect.
Gone back to 40 Mbps/Unlimited view on Chromecast 2 and having no further issues.

HTH someone.

Well, that was short-lived. Worked fine last night. Watched several episodes, then tonight the stuttering came back. Even tried disabling encryption, but stuttering is still unbearable on any bitrate above 8 Mbps.

Yeah there are no really fix to this annoying stuttering, what I do when it happens is quickly tab pause 1-2 sec. and its usually gone till next time, I also do this every time I start a movie let it run 2 sec. and pause it 2 sec. and it usually make the hole movie watchable.
It seems like something is starting to early and can’t keep up, I would much rather wait 5-10 sec. before movie starts than manually pause it all the time.

I’m also facing some stuttering issues when I use playlists. This never used to happen. I would set up a playlist on the exact same system that I’m using and it would play all night if I fell asleep without any issues. It seems like at some point when I upgraded my server, it started having this issue.

What happens is that I create a playlist of about 20-30 items from my android phone. The playlist sets up and starts streaming correctly to my chromecast. It makes it to the point where I need to push play to get the media to keep streaming then it plays another 3-10 episodes of a tv show that I’m watching perfectly then out of nowhere it starts stuttering. it plays like a half to full second just fine where I think that it stopped happening then it skips again and that repeats until I get so frustrated that I stop it. It makes me feel like I’m listening to a scratched CD in the 90’s. If I disconnect from the chromecast then reconnect and start streaming again the problem is gone until I get to that same spot and the problem happens again.

I have tried the steps in the first message and I’ve been searching through all of the information I can find for a fix. It’s extra frustrating considering it never used to do this.

For a bit of a background. I have an AMD A10 APU running at 4 GHz, 16 GB of RAM running at 1600Hz, I have a WD Black hard drive, The media is streaming from a WD EX4100 which is mounted as a network drive and my PC is transcoding. My wireless router is a ARRIS SURFboard SBG6782AC. The media that I’m streaming is no more than 700 MB per file but some of the lists that it has happened to the episodes are all less than 400MB even some are down to 100 MB. I have tried both direct stream on and off and tried playing with the transcode quality and have tried setting streaming quality down as low as 3 MBPS. I have recently turned on the logs so I can find out more.

Any help I could get is appreciated.

Had the same issues as everybody else, and tried every combination in this thread. changed speed, buffer size, automatic burning of subs, made my CPU hurt, etc

in the end there was but one thingthat completely solved everything. I can now watch at original quality, CPU remains at 20-30% and no more buffering (Xpenology with Intel CPU)

everything is on direct play, and I disabled secure connections and enabled ipv6 (probably the latter doesn’t do too much). you change that on, settings, network, and then the drop down box set to disabled.

Chromecast2 will NOT solve stuttering problem!

Yeah, Chromecast 2 doesn’t help. I’m using Xbox One now, and it’s way better. Will probably sell my Chromecast now.

This issue is getting really annoying!
I’ve tried everything anyone has suggested and nothing seems to solve the problem permanently.

I have a debian server i5 2500k @ 4.4 GHz, 16GB ram @ 1600, 1GB LAN connection to Asus rt-ac68 and Chromecast 2 placed 2 meters from the router with full signal on ac 5Ghz.
My plex pass is hanging by a thread!

I have recently been testing my Chromecast 2 and just like most of you I still get stuttering issues.
During my tests I noticed every time the movie I am playing starts stuttering I click pause on my Android App, wait for a few seconds and then it stops. I am pretty sure the issue isn’t related to my server as I have checked it previously. So I have no idea why this is happening but this seems to fix it temporarily.

This is really frustrating i had no issues for a long time on chromecast 1 but last year plex is unusable.

I dont agree with comments about changine settings. This is a problem that will need to be solved with an update to plex when handling chromecast playback.

I’m convinced the problem isn’t anything to do with Plex. Recently been getting stuttering on audio on files that play fine directly on android and a mac. These are SD MP4s so not high bitrate either. I’ve tried them streamed from localcast via plex/DLNA and direct from the file via smb (plex not involved) and get the same audio dropouts… Next step will be to download the file to the phone and confirm that it takes much less than half the streaming time to rule out wifi congestion. Also when the audio drops, it normally seems to happen at the same intervals, so I don’t believe it is maxed out wifi.

I can only conclude that “secure connect” is the problem of jitter and stutter.
My Plex server is running on NUC6i5RYH + 16Gb DD4 + 250Gb 2.5Gb/s m.2 SSD. This thing cannot create stutter or jitter even if I did my best.

Stutter and jitter immediately starts when “secure connection” is enabled. When disabled I have full HD 40Mb/s smooth streaming towards Chromecast.

I do not have the desire to disable “secure connection”. This issue must be addressed and resolved.

Add another person stating problem w/ secure connect. I turned the allow insecure connections to always and its finally working. Server can easily handle the transcode.

Conveninately enough, if I manually transcode to mp4 and aac it can direct play it. But any transcoding w/ secure causes stuttering issues. This never used to happen.

I can also confirm that disabling secure connections fixes the stuttering issue. I double checked with a few movies and can now play at original quality without any issues. So secure connection functionality really needs to be looked at.

Unfortunately I am having the issue again - I am wondering if it isnt’ somehow network related (bandwidth on both server & client is fine). It appears to only get the stuttering problem on this network. I am doing some more testing and will let you know.

Curious anyone here have TWC as an ISP? I am starting to think they may be throttling the connection as I need to go down to 1.5Mbps to play w/o stuttering. All over services (netflix/hulu) work fine and my connection is 30+ on speed tests for download.

I’ll stop posting updates here as I have confirmed that this is no longer Chromecast related and related to network throttling. Easy way to troubleshoot if chromecast or network is to try the media on different devices (phone/computer/etc like recommended in OP). If you have good cell data network - try to stream to your phone on it to see if it still gets same issues (to troubleshoot between network or server issue).

Spec for Chromecast 1

Output: HDMI
Processor: Marvell Armada 1500 Mini 88DE3005 SoC, 1.2GHz ARM Cortex-A9 processor
RAM: 512MB
Storage: 2GB flash
Max. Output Video Resolution: 1080p
Dimensions: 72(L) x 35(W) x 12(H) mm
Weight: 34 g
Connectivity: 802.11 b/g/n (2.4GHz)
Power: microUSB (Power adapter included)

Spec for Chromecast 2

Output: HDMI
Processor: Marvell Armada 1500 Mini Plus 88DE3006 SoC, 1.2GHz dual ARM Cortex-A7 processors
RAM: 512MB
Storage: 256MB flash
Max. Output Video Resolution: 1080p
Dimensions: 51.9 in diameter, 13.49mm (H)
Weight: 39.1 g
Connectivity: 802.11 ac (2.4GHz/5GHz)
Power: microUSB (Power adapter included)

Chromecast 2 does support 802.11 ac (2.4GHz/5GHz) while the first version does not.

Source: http://www.knowyourmobile.com/devices/google-chromecast-2/23327/chromecast-2-vs-chromecast-best-just-got-even-better-comparison

Chromecast 1 and 2:

I had a lot of stuttering issues with my Chromecast 2, found this thread and saw 5Ghz wifi can cause problems, and yup, switching my Chromecast to use 2.4Ghz instead fixed the issue.

Honestly not sure whether this is caused by the chromecast or my router (other devices seem to function fine at 5Ghz), but I’m happy for now since 2.4Ghz is still fast enough for all the media I have.