https://www.epo.org/en/service-support/faq/learning/european-patent-administration-certification/should-i-use-my-corporate

Should I use my corporate or my private environment?

Corporate computers and networks often have a strict security policy. In this respect, some candidates have experienced issues with the lockdown browser (e.g. interruption of flow), with the use of camera and microphone or with the reliability of the network connection used by the lockdown browser and IP address issues.

To mention some elements to be checked (list non-exhaustive): software rights management; screen or power savers; automatic system or software updates; hardware rights management for camera or microphone; virus scanners; change of IP addresses in corporate networks; firewalls security configurations.

If you experience issues during the technical tests, which cannot be solved, it is strongly advised to either contact your IT department to solve the issues within your corporate IT Policy or most advisable is to use another (private) computer or network.