Hello. I was trying to do a test import from VB 3.8 and getting this error. This is the rest of the error message: Zend_Db_Statement_Mysqli->_execute() in Zend/Db/Statement.php at line 297 Zend_Db_Statement->execute() in Zend/Db/Adapter/Abstract.php at line 479 Zend_Db_Adapter_Abstract->query() in XenForo/Model/Permission.php at line 1591 XenForo_Model_Permission->rebuildContentPermissionCombination() in XenForo/Model/Permission.php at line 1551 XenForo_Model_Permission->rebuildPermissionCombination() in XenForo/Model/Permission.php at line 1453 XenForo_Model_Permission->rebuildPermissionCache() in XenForo/Importer/vBulletin.php at line 1655 XenForo_Importer_vBulletin->stepForums() in XenForo/Importer/Abstract.php at line 77 XenForo_Importer_Abstract->runStep() in XenForo/ControllerAdmin/Import.php at line 180 XenForo_ControllerAdmin_Import->_runStep() in XenForo/ControllerAdmin/Import.php at line 132 XenForo_ControllerAdmin_Import->actionImport() in XenForo/FrontController.php at line 313 XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132 XenForo_FrontController->run() in /home/wordhave/public_html/xenforo/admin.php at line 13 This occurs when I try importing the forums. Now I know the obvious answer is going to be that the host needs to increase the max_allowed_packet size. However, I have been assured by my host that the present limit is 512 MB. It was already 256 MB and the host increased it after I reported this error. I can't believe it would require more than that. I could run IPB fine with a 32 MB limit. I also ran the the test script to make sure the host meets all the requirements, and I'm not seeing anything lacking there. But I don't claim to be a whiz with these things. Can someone tell me what I might be missing here? TIA EDIT: I probably should have put this in the import forum, so feel free to move it.