Unknown Session error

Nocy123

Hello

I get "Unknow session" when im trying to connect to my android phone.

I have windows 11 64 bit

.Carol.fg.

Thanks for your question @Nocy123 !

And welcome to our Community! 🙌

Connection issues can be caused by different reasons, so we will need more details to troubleshoot this case.

• Is your Android phone on our list of supported manufacturers?
• Was it working before and stopped working, or is it the first time you're trying to connect with this device?

I'm looking forward to your feedback! 🙋‍♀️

Best, Carol

Nocy123

https://community.teamviewer.com/English/discussion/comment/146250#Comment_146250

This is the first time im using it on my windows 11 computer and with the new big update from TeamViewer

.Carol.fg.

Hi @Nocy123 ,

Thanks for the additional details!

• What is the direction of the remote connection? Are you trying to connect from your Android to Win 11, or Win 11 to Android?

📌Please remember that to start a remote session you must sign in with your TeamViewer account.

Let us know if you still have issues after doing the login with your account. 🙋‍♀️

Best, Carol

Nocy123

https://community.teamviewer.com/English/discussion/comment/146296#Comment_146296

I dont need to be login if i have the session code. But it dosent work even if i would login

Windows 11 to android

.Carol.fg.

Hi @Nocy123 ,

Thanks for the additional information.

Just for clarification: please know that the device that is starting the connection (windows 11) must be logged in in order to start a remote session.

• Without the sign-in, TeamViewer Remote allows a user to join the session waiting room, but the supporter still needs to start the session which requires a login.

After sending the session link to the Android device, the remote partner can click the link to install the QuickSupport app.

If QuickSupport is already installed on the mobile, it will redirect to it automatically.

During the installation, you may be asked to install the manufacturer Add-On or Universal Addon for compatibility. Also, you may be asked to Allow in the Android settings the option to Display over other apps.

Once the Android has the correct configuration, the supporter will be able to start the connection for the remote side to allow the connection.

• Does the message unknown session is happening after the remote side clicks Allow?
• Have you tried to restart the internet router of the devices?

I hope the information above can help.

I'm looking forward to your feedback! 😄

Best, Carol

Sergey_Barmaley

I have absolutely the same issue with any connection from Win 11 (to Win 10, to Android tablet). App is up to date on all the devices.

I am trying to connect using remote machine Id/password.

Actually, it does not even get to the step with password. It just cannot connect.

.Carol.fg.

Hi @Sergey_Barmaley ,

Thanks for reaching out to our Community!

Have you tried uninstalling and installing TeamViewer again?

If not, you can follow our guide for advanced uninstall, and then download it again from our website.

Let us know how it goes! 🙋‍♀️

Best, Carol

TechAzn

I'm new to the forums, but I might have found a possible fix to the unknown session issue. It seems you might need to register for a free TeamViewer Account after updating to the latest version of TeamViewer. I wish I took a screenshot, but if you go back to the classic view of TeamViewer & try to remote into a PC you'll get an error stating you need to register for an account to make an outbound remote connection. I'm going to try & login to my dad's computer later in the week & see what happens. I'll post updates later.

righteousjoe

Teamviewer used to be the best and easy to use. nowadays its just too complicated. been using it for more than 3yrs, was working perfectly but after updating it, its just too complicated

gzgenm

You had a working product and now made it **bleep** and unuseful.

100500 mails 25348683468 asks for trusting, UI says "unknown session".

I hope your company will come to the end soon. And I personally go to your competitors. **bleep**

TennesseeJT

I agree: TeamViewer is now USELESS! First the suddenly "detect" NON-commercial systems as "business systems" and try to force no more use of the 'Free' version, even though it is just an old work PC that is NOT a business system at all. Now, they FORCE you to login, before allowing any session to be connected? That's crazy! It's overreach.

aiya

Thank you @TechAzn ! I did that and it works! I tried another remote desktop app and I love the other one... The other app is super straight forward to use... I used to use TeamViewer for years too until they blocked me as they thought I'm using it for business. And when then they introduced all of these things it just got too complicated and I couldn't be bothered so I went to another remote desktop app. Decided to try TeamViewer again yesterday just to see what is up... Had the same problem but finally got it working after seeing your post... But unfortunately they still said I'm using it for business... So guess I'll be going back to the current remote desktop app... Too much bell and whistles and they keep saying I'm using it commercially... If I am a TeamViewer employee, I would be starting to find another job before the company goes kaput....