I was wondering for some years now, why Youtube is buffering so slow on high bandwidth-videos, like 4k and even 1080p.I'd been even assuming that this is a general issue and YT is limiting bandwidth.I do not use mobile data too often, then I would have seen it right away:The reason is, I'm using a UTM soft-appliance at home AND at work.When I go to any other network (like any "Fritzbox-DSL-line", I will work like a charm.So the problem seems to be the UTM.At work I got a 600mbit/s German Telekom DCIP fibre-line and at home I got a symmetrical 100mbit/s connection.The YT-statistics (you can look at that in any video with a desktop-browser) says +/- 2000kbps speed.But with looking around here and searching, I was not able to solve it.What has been done:
Any idea what to do?BTW: RAM at the UTM at work (SG230) is at 38% and CPU is mostly low, lower than 25%.
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Could you please check if Anti-DoS/Flood protection for UDP is configured under Network Protection > Intrusion Prevention > Anti-DoS/Flood Protection…
Could you please check if Anti-DoS/Flood protection for UDP is configured under Network Protection > Intrusion Prevention > Anti-DoS/Flood Protection.
Disabling IPS doesn't turn off DoS Protection.
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Let me answer with a picture:
Just turned it off ;-)Or could I just change some setting there?
Thank you for the update.
You could leave the default configuration and create the exception for the destination host.