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I'd like the access to remote files by My Network Places (SMB or Samba) was done by wired connection always when it's available. It makes big difference - WiFi G (about 2-3 MB/s) vs Gigabit Ethernet (tens of MB/s).
I use Windows 7 on laptop connected simultaneously to wired and wireless network. The priority of wired network is set to highest as I need sometimes faster transfer than WiFi, to copy big files. It can be checked using "route PRINT" command. Actually it's one network powered by one router, both cards have own different IPs, and from both, network resources are accessable. If the computer was powered on (booted or resumed) with both connections on, SMB works using wired network, as it should be. However, when only WiFi was used for some time and then ethernet cable is connected, SMB still use WiFi. It is needed to turn off wireless connection to achieve faster wired transfer. Routing metric is ok, because web browser traffic use right connection as these are short-living TCP connections. Big downloads from the Internet when stared on WiFi won't switch to wired when cable is connected during download. It's understandable since TCP connection is once set on WiFi. If it will be reconnected, it will use wired then. The case of SMB it different. I power on the computer with WiFi only. Copy some remote small file and now the SMB knows that that remote server is accessible by WiFi. Then connected to Ethernet and don't use SMB even for hours. When I want copy big file from server it still uses slow WiFi, not wired Ethernet.
Is any way to fix it? I emphasize that I don't want to turn off WiFi connection, because I frequently take my laptop somewhere and when I'm back to my desk I reconnect Ethernet cable.