I am running a server 2008 with iis7 and the ftp addon on to iis 7.0
I have the ftp site configured and mostly working
Except that about 70% of the time when transferring a file the upload will hang forever. If I disconnect the ftp client and reconnect and try to upload the same file I will get an error on the client saying the file is locked.
I have to restart the ftp service to clear the lock.
I fired up process explorer and did a search on the file in question and sure enough the ftp service has a lock on the file and it takes around 20 minutes to release the lock on its own (and sometimes longer). This lock stays around even after I disconnect the client.
Like I said this only happens about 70% of the time, the other 30% of the time it goes through just fine.
Things i have verified.
-Not a firewall issue. Server is using passive port range 8000-9000 which is allowed on the firewall. -Not a nat issue, server has a globally rout-able ip address -all recommended/required updates installed
I have 5 other servers in a very similar configuration and this is the only one i have problems with.