I have set up a Microsoft Windows SBS 2008 server for a small company (8-10 users). They use it as file server, print server, mail server etc. - basically everything small companies need except a public web server.
Browsing the network shares, printing etc. is usually fast and problem-free, but sometimes, certain actions take an extremely long time. For instance, I recently tried to open a Word document on a network share and waited over a minute for it to appear. Meanwhile, while Word was appearing to hang, I had no trouble browsing the network share from Windows Explorer. After the document initially loaded, I could close Word, re-open the very same file, and it appeared immediately. Similar things happen on all network share actions as well as printing on the SBS printer (takes time to open the print properties dialog).
Copying files over the network is fast, around 10 MB/sec (using 100mbit switches) - I doubt the physical network/link layer is responsible.
This is happening on several client computers (if not all), both Windows XP as well as Windows 7 clients. The computers are all members of the domain.
Any ideas why this is happening? All help and suggestions are very welcome - I have been tearing my hair out over this... Thanks!