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1. #Realtek 8812bu wireless lan 802.11ac usb nic 5ghz problems install
2. #Realtek 8812bu wireless lan 802.11ac usb nic 5ghz problems iso

80Mb in theory should be plenty enough but as we all know, wireless is wireless.

#Realtek 8812bu wireless lan 802.11ac usb nic 5ghz problems iso

A standard FHD BluRay's ISO bitrate is usually at around 40Mb. USB bus has a lot more bandwidth than the built-in Wi-Fi. I personally bought a USB stick, and can get up to 250Mbps with it. Now toggle the option 'Connect automatically when in range' to OFF. Click on 'Manage known networks' Select the Network that you want to 'forget'. With that all being said, this might be enough to make it work with HD/FHD content. (Make sure you have connected to the 2.4 GHz network at least once before.) Open Settings. But reality is the cache memorysize is the fixed memory allocation, 1/4 of the buffer is for the back cache (rewind), and 3/4 is the forward cache. Some folks will say this will slow down video load times (I haven't noticed anything, and I actually run with 512MB cache), or it requires 3x memory (I think the Kodi Wiki says this, it may have been true with older versions of Kodi - but doesn't appear to be the case anymore). You can try to combat that with adjusting the cache memory size via advancedsettings.xml, on a 2GB RPi4 you have plenty of RAM available so something like this should be OK: I am in a similar situation, and I have used the internal Wi-Fi before but typically my content is HD or FHD, and ran into buffering problems even with sustained 80Mbps bandwidth.

#Realtek 8812bu wireless lan 802.11ac usb nic 5ghz problems install

What I would do is install iperf3 on your NAS, and then test both directions from your RPi4. The performance will vary based on congestion, distance, etc. It is limited by the SDIO bus speed, and as I understand it there is nothing you can do about this. If your OC'd then I have heard of up to 100Mbps. RPi4 will cap out at roughly ~80Mbps for Wi Fi performance, regardless of connection speed. You don't really mention what version of LE your running. Some device pairs just never work with each other. Keep toggling one thing at a time and retrying until it hooks up. Definitely not a problem with my house's Wi-Fi setup (Cisco 3802 with vWLC). Check your router settings and see if it allows an 802.11n device or is set to ac-only. I believe that Pi4's built-in Wi-Fi is just not capable of doing it.

They connect to my UAP-AC-LR on 5Ghz with no issue. I took my Pi out of the case to maximise antenna's reception however when attempting to stream videos via Wi-Fi, I can't get anything with bitrate more than 8-10Mbps to stream smoothly off my NAS. I bought a couple usb 3.0 gigabit ethernet adaptors for three laptops in the house. My rPI4 is now attached to a TV that is nowhere ethernet socket, so I need to find another solution.