One of my clients is experiencing the following issue with their Windows Server 2012 fileserver (so far it has happened twice in a timeframe of several months):
Access to fileshares hosted on the server becomes slow/unresponsive from all Windows 7/8 clients, but at the same time access to the same shares from Windows XP clients is still operating normally (no drop in performance whatsoever).
There are no relevant errors logged on the fileserver and cpu- and memory-usage is at a normal level. A reboot fixed the issue on both occasions (being a local government, it was not an option to try and troubleshoot the problem in depth)
Is there any way I can enable verbose logging about what's happening with the SMB2/3 stack and maybe troubleshoot what is causing the issue?
I'm not sure what kind of information might be relevant to this issue, but ask away and I'll try to provide any details.