Graylog 2.5.2 - Can't search on timestamp

You’re using an old version of the software to perform an evaluation. The results of that evaluation are going to be invalid since there are some big differences from v2.5.2 to the latest v3.1.4

Jan asked some very simple questions in order to assist with troubleshooting and your response is a perfect example of how NOT to receive support.
This community is very helpful however, we expect to be provided with enough information to actually troubleshoot.