If you get strange things happening try to do a trace route for the website and check for any long delays between segments. Then try ping and note those results. These tests check your route to the site without requiring a high server workload. You need to know your systems settings for wait times and retry counts. If you get session sql errors its a server problem (most likely) Try a save page from the browser. Then display it from the saved copy, that will show if the data is corrupted or if the browser is misinterpreting it.