Hello Sebastian,
Thank you for contacting the Microsoft Community.
I understand that taking your exam is a crucial step towards achieving your goals, yet you encountered network issues. Although our scope of support is within Microsoft Certification Profile access and benefits, I'll make sure to provide you with necessary information for you to be assisted by the appropriate team with rescheduling.
Since the issue has been raised and they have provided you with a case ID, you can be sure that their team is now working diligently to address the incident and provide you with further instructions on how you can successfully take your exam again. With your case ID, you can easily check the status of your case and get updates on any progress made by contacting Pearson VUE Support (select your region).
To ensure that we've got your case covered, please let us know how things turn out after reaching out to Pearson VUE.
I am hoping for your response.
If this solves your problem, please indicate “Yes” to the question and the thread will automatically be closed and locked. In case we do not receive a response, the thread will be closed and locked after one business day. Please be advised that after the case is locked, we will no longer be able to respond. If the resolution provided did not resolve the issue, please post a new question.