Second screen not working

[psygorn]

I cant connect from my pc to my s9+ via second screen it keeps on saying cant connect i already installed second screen app on my windows 11 but it wont connect

[psygorn]

I dont know how to fix this issue or even if samsung knows or cares about it, mine got fix when i disabled my vpn and downloaded the samsung apps for my windows then it just work, i hope samsung finally fix this

[Nuttbutt]

I too have givin up and i'm a very fidgety person. Tried every which way to connect the display on my tab s9 ultra with no results. The screen keeps going black connection.😅😂

[krapapock]

same issue, a blank screen for 10 second and the cannot connect message... s9+ and windows 11

[fthdrmzzz]

Same Here. When I try to connect, It goes black for a second. Then it doesnt connect. It rarely works. I couldnt find out what makes it work and what doesnt. Please help

[Adamowskyyyy]

You should try with disabled firewall or antyvirus agent. 

Its works for me :)

[lpsouza32]

This is works for me!

[Members_yydJX1u]

You are absolutely correct. I deactivated my antivirus, Avast and it connected immediately.

[Theodoros]

Hi, thanks a lot for your information. I have just disabled the firewall and the second screen works perfect. I had lost a lot of time to do it functional. My best regards.

[PGW]

Eureka! It now works for me too. having tried all sorts, I saw this message and duly turned off my W10 PC (Windows Defender Firewall) setting for "Private networks," (produced a Windows Security warning "Not recommended" action). This firewall change/disablement means that when I apply the "Second screen" connection procedure again, the Tablet successfully displays the desired PC's Desktop, (albeit a smaller-scale version of same). The Tablet (PC Desktop image) might now have the App Shortcuts/icons laid-out in different locations, but this is obviously down to Tablet's smaller screen. I find I'm able to use either my normal PC Mouse or the Samsung Galaxy S9 FE Tablet's S-pen to operate/navigate Tablet just like I'm using my PC, (but with a smaller screen of course). Everything now seems to work, so happy days. When I'm not using the Tablet and "Second screen," I will be putting my PC's Windows Defender Firewall settings back to where they were. Only takes a min to change 'em again. Hope this helps someone else. 

[TPiculo]

Guys, I deactivated the firewall in my Avast antivirus and it connected immediately.

After that, just follow the steps below:

try these steps to connect your Galaxy Tab S9+ to your Windows computer:

1. On your tablet, open the Quick settings panel by swiping down from the top of the screen.
2. Swipe left and tap the Second screen icon.
3. Choose the connection mode: Drawing/Gaming or Video.
4. Keep the Second screen page open on your tablet.
5. On your Windows computer, simultaneously press the Windows key and K key.
6. Select your tablet from the available devices list.
7. Optionally, check "Allow mouse, keyboard, touch, and pen input from this device."
8. Your computer's screen will appear on your tablet. Use your computer's mouse or tablet's touch screen for navigation.
9. Right-click the desktop, choose Display settings, and select between Duplicate or Extend displays.
10. Rearrange monitors if needed; apply changes.
11. A toolbar will appear on both screens; pin or unpin using the thumbtack icon.
12. To disconnect, select Disconnect on the tablet or press Windows key + K on your computer, then choose Disconnect next to your tablet's name.

Let us know how it goes!