Also pressing the TAB (SHIFT + TAB for backwards) key should move the focus. Through trial and error you should be able to put the focus on the enter button and then use the ENTER key to press it/
If you connect a device to their router and it disconnects then surely they are not providing a service. Tell them to fix it or remove it. In Australia we wouldn't have to pay because they haven't provided the service. Not sure how it works where you are.
At a guess I would say 1 & 3 are normally closed and 2 & 4 are normally open and that the 2 in the middle are for the light.
At a closer look I realize what I thought I saw and based my guess on isn't there.
But they show up in quick access pane on left of Window don't they?
You can click on File Explorer Options and there is also a show libraries option there.
You can simply type Libraries into the address bar.
Etc...
Also if you're not having any luck lifting because it feels like its stuck in the middle then perhaps try pushing from the rear on the heatsink plate. (but don't forget to hold the board so it doesnt fall out
What you probably have there is pressure from the rear io pushing the board against that edge.
Place your fingers along the front edge. Parallel to the ram.
Apply some pressure backwards towards the rear io. Watch to see if the screw mounts center in their holes.
Then while keeping the back pressure gently apply some lifting pressure.
Sometimes the rear io can put a reasonable amount of pressure on the board. Trying to slide it forwards. This can give a feeling of things being held in place. Just to be super clear though since it's hidden in the pic you did get the top middle screw?
ok. Well try lifting from the front edge of the board because expect the rear IO panel to hold that end down. After youve tilted it up from that end and cleared the standoffs it should then slide out of the rear io panel.