I'm not able to share my screen it says no access route....
Thank you for your message.
I recommend you to restart the TeamViewer service on both sides and try again.
If the problem still occurs, I recommend you to use TeamViewer 14 on both sides of the connection.
You will find all the information you need in our Knowledge Base article here: Enjoy using the best version of TeamViewer we made so far! - How to proceed?
I hope this could help.