We have a Windows Server 2008 R2 DFS setup with 3 fileservers (which are all DCs) between our three remote offices. We’re having an issue where opening up\saving a document is taking much longer using the namespace name path compared to a direct server file share path. For example, opening up a 230KB excel file will take 10 seconds on a path \\ourdomain\namespacename\dfs_share, whereas opening the same file through \\servername\share takes a second. This is just a small file example. Larger file delays are longer.
Some troubleshooting I have done:
- Ping “ourdomain” to make sure that the IP address is same as “servername”
- Right click on a folder to make sure that the DFS path is going to the server on site not remote.
- Instead of using “ourdomain” DFS path, use the closest “IP address” as an alternate DFS path (\\IPaddress\namesapcename\dfs_share is also slow)
I am somewhat new to DFS, and any explanation of why this is happening would be greatly appreciated. Thank you.