I recently purchased a Gigabit switch for my network and I have noticed a very strange anomaly when transferring files from my Mac to my Windows computers (one runs Vista, the other is on XP MCE). If I transfer a file from the Mac to either computer, it transfers at about 5MB/sec, which is very slow for gigabit… but if I transfer the file once again (immediately), the speed goes up to 25MB/sec, which is normal for gigabit. I can’t figure out why this this is happening.
So far, I have disabled IPv6 on the Ethernet adapter on my Mac and both Windows computers, I have also tried adding “socket options = TCP_NODELAY IPTOS_LOWDELAY” to my etc/smb.conf file, as recommended by another user experiencing the same issue. Unfortunately, I have noticed no change in the behavior.
Any help would be greatly appreciated! 😐