I recently moved my CiviCRM install from a local in-house server to a cloud server hosted by Siteground. Everything is working beautifully except for the import and export.
My database is around 60,000 names.
When I try to import a list of 5000 names to update their addresses, it gets through about 600 records (exactly 3 minutes) and then reverts back to the initial import page. Sometimes it has failed in 2 minutes, but no longer than 3. I can't find in Drupal logs showing a failure. I contacted Siteground and asked them to increase my max_execution_time, memory_limit, and max_input_time. They showed me how to do it myself and I tried it. Still no change. I disabled geocoding and it got to 3 minutes and 15 seconds.
So I tried exporting 45,000 contacts (a process I run about 4 times a year) and it lasted 3 minutes as well and then reverted back to the Search Builder page (where I started the export).
What setting is causing this issue? Siteground fixes things pretty well so I just need to know what to tell them.