So I'm at my parents house today setting up a new Linksys wireless router for them. Get it all setup and all computers get online no problem. All getting DHCP address from Linksys. Three Macs (Macbook, Macbook Pro and iBook, SL, SL and Tiger) and two Windows Xp professional comps. After getting everyone online I went to try to setup printer sharing so my brother's MBP could print through one of the WinXP machines to a Epson Stylus CX6600. (the iBook worked fine) I kept getting the NT_STATUS_CONNECTION_REFUSED error. So I start troubleshooting and first thing I make sure is that all firewalls on all the comps is off, then checked that they could talk to each other. Here is where it gets interesting.....the iBook can ping all the other computers. The PCs can ping each other and the iBook but not the MacBooks. The two MacBooks can ping each other and the iBook but not the Windows PCs. All computers are on the same subnet with firewalls turned off and all machines running wirelessly. Funny thing is the MacBooks show up in My Network Places on the WinXP machines but you can't access them. The windows computers do not show up at all in the Finder on the two MacBooks. The PCs are connected to the wireless via a hub with a Wireless Ethernet Bridge in the uplink port (802.11g) The two macbooks are 802.11n. I did a test with one Macbook by disabling airport and plugging it into the hub with along with the PCs and once I did that the PCs and that macbook could communicate like normal (and print) but the MacBook still just on the wireless could not talk to anyone then (other than the ibook still) So to me it looks like there is some issue with the wireless g and n devices talk to each other save for the ibook. Which is why this makes no sense. The linksys is a WRT160N the wireless setting are set as follows: I tried changing the Network mode to b/g only and the radio channel to Standard 20MHz but those didn't seem to make a difference: Anyone else got thoughts on this issue, its really buggin the crap out of me. I wish I had a 802.11n wireless ethernet bridge to try with the PCs to confirm this.