LibreELEC build's aren't official for the Rock, and the development ones are laggy, buggy, and unstable.
At the point where the lead developers for RK hardware think it's ready we'll release something. Until then you're running a known-to-be unfinished work. We expect the codebase to have bugs. You should expect them too.
Win10 has probably applied updates during the reboot that change it's SMB configuration. It now requires an authenticated connection to shares so you need to edit sources (in Kodi and on Win10) and set credentials. Win10 will also expect an authenticated connection when it connects to the LE samba server; if you have enabled the user/pass function the default is libreelec/libreelec.
chewitt, could you make LE repo available for S905/aarch64 Leia Kodi 18.
No. Official releases will use 64-bit (aarch64) kernel and 32-bit (arm) userspace to ensure libwidevine.so is available for Netflix/Amazon support. There are no plans to release aarch64 addons so "update" to the S905/arm image and addons should be available.
should be fixed now if you refresh the repo
Displaying upgrade messages in the GUI only works for English (without a large translation effort) and also requires the functionality of the settings add-on to be extended, which is probably more work than supporting SMB issues in the forums 
I've updated the addons webserver to map S905/aarch64 against Odroid_C2/aarch64 which should make add-ons available to the LE8.2 (Kodi 17.6) images. Reboot or force-refresh the LE repo and it should show content now.
I can get to PVR addon, from Libreelec Add-ons error msg " Could Not Connect to repository" any suggestions?
I'm not sure what add-on repo is configured in these images, but if it's using the official LE repo there will be no aarch64 add-ons because we will not be publishing any aarch64 official images and thus I haven't built them for that CPU arch. I also didn't update them for arm for a while .. will do that in the next couple of days probably.
Klojum maybe copy/paste a sample GRUB menu file?
Disable the LCD in BIOS and then it should only 'see' the HDMI connection.
I dream of 6Mbps upload!
FTP can be added via add-on, scp (based on ssh) is baked into the OS image.
Make sure you create a diff patch and store it somewhere like packages/mediacentre/LibreELEC-Settings/patches/LibreELEC-Settings-01-new.patch. If you just edit the unpacked sources in the build.LibreELEC* folder between build (re)runs the change is not applied.
Not that I'm aware of..
Part 10 refers to the H.264 standards documentation. It's doesn't mean 10-bit.
It sounds like a bad card. It's unusual as pi-hut stock decent brands, but it's not impossible. I suggest you contact them.
That's a bit like saying "my car is a ford" and expecting us to know the type of spark plugs fitted. Try again..
