As per the support team notes, the issue was fixed after updating the BIOS to the latest version.
Hi All, Laptop - Alienware m15 r4 SpecsProcessor Intel(R) Core(TM) i9-10980HK CPU @ 2.40GHz 3.10 GHzInstalled RAM 32.0 GB4K OLED TouchscreenNvidia RTX 3080 Edition Windows 10 ProVersion 22H2Installed on ‎2/‎06/‎2021OS build 19045.3086Experience Windows Feature Experience Pack 1000.19041.1000.0 I am no longer able to watch Netflix/Disney Plus 4K Streams via their respective apps. Netflix has provided the following Error Code: U7361-1255-8004CD22. A quick Google search advises that the issue arises from the system, not recognizing that the attached laptop monitor is HDCP Compatible. I have checked the Intel Graphics Command Center and it seems to be the case. All drivers and BIOS are up to date. I can see that there was another Dell customer that had a similar issue - [URL] It seems that Dell pushed out a BIOS update that fixed the issue. As the problem seems to be a software issue and not hardware the only other alternative I could locate was updating the Intel Graphics Driver directly from Intel's website - Graphics Driver 31.0.101.2125 for 7th-10th Gen Intel® Core™ Processor Graphics - [URL]  The latest Intel Integrated GPU driver for this machine released from Dell was 27.20.100.9664, A02 29 Sep. 2021 - [URL]  I'm extremely hesitant to download the driver from Intel as it would not have the customizations that Dell would have implemented for m15 R4.
m15 R4, Netflix 4K Playback Problem U7361-1255-8004CD22