Creating a submission (any type) - issue in completing the submission

I am trying to create a follow-up scientific advice submission in the IRIS platform.
Using my company laptop I encounter the issue that after completing the first questions (company, type of submission, manager) I cannot edit the draft submission anymore.
Using my home computer it works fine.
I therefore think it might be related to a security setting on my company laptop. 
What might be the reason and should there be a specific setting I should change on my company laptop?

The issue reported may be caused by the firewall settings of your Organization, and it is therefore recommended that you notify your IT Department. The fact that the process works well in you personal computer suggests that there is no bug in the IRIS system. If your IT Department cannot sort the issue, you may consider creating an incident in the EMA Servicedesk (Report an issue with IRIS), providing as much detail as possible and including screenshots of the error and when it is generated.