Youtube choppy playback with HTML5 player

[jwworker201]

Hi guys,

 

I hope this is the right category for my question.
So my problem is as I described it in the title. I have really playback on youtube with the HTML5 player. It was suddenly there. 
With choppy I mean really choppy. Videos keep loading forever till they start to play in 144p and stop after a short time. Sometimes videos play fine and then start hanging when the buffered part ends. Livestreams are almost not watchable because the stream buffers for some minutes and then plays for only a few seconds in 144p (when the resolution is set to auto). I just can't figure out what is causing the problem. It was normaly working just fine. My internet should be more then fast enough (100Mbps down/ 20Mbps up). I even tried another browser (Firefox, Edge; I normally use Chrome) but had no luck. I thought my extensions are causing the problems but as described before it does not work in Edge or Firefox with no plugins installed. I tried to deactivate my extensions in Chrome but that changed nothing. Strangely it works in incognito mode.
But I thing that my router is causing the problems since I was able to replicate the behavior on a notebook (also Windows 10 Pro x64 with Chrome). As I router I am running pfSense since a few weeks with pfblockerNG and Snort. Deactivating Snort and pfblockerNG changed nothing (no, Snort did not block some of Googles IPs).

Any Idea on how to solve this problem? Everything other works just fine. Even streaming from other providers works just fine. 

thanks and sorry for my bad english

[ProjectBox153]

Can you try connecting one of the computers straight into the ethernet port on your modem (or wherever you get ethernet from, but before the router)?

[BlueChinchillaEatingDorito]

29 minutes ago, jwworker201 said:

-snip-

YouTube can show analytics on performance for other users within your area. What does it say?

[jwworker201]

8 minutes ago, BlueChinchillaEatingDorito said:

YouTube can show analytics on performance for other users within your area. What does it say?

Sorry that I am acting a little stupid but where can I view this?

[jwworker201]

9 minutes ago, Jamiec1130 said:

Can you try connecting one of the computers straight into the ethernet port on your modem (or wherever you get ethernet from, but before the router)?

I'll also try this later 

 

[BlueChinchillaEatingDorito]

4 minutes ago, jwworker201 said:

Sorry that I am acting a little stupid but where can I view this?

I don't quite remember, but I think you click on "Find Out Way" when YouTube pops up "Experiencing Interruptions?" underneath the video when it takes a really long time to buffer.  

[jwworker201]

Sorry taht I didn't write back. I was testing youtube since the playback suddenly started playing back properly again yesterday. No issues since now. Hope it will remain so. 
Thanks for your patience and help!