No. He wrote that same problem is when connecting to another wifi networks and when he use Ubuntu or his colleagues use MacOs/Windows then everything is ok.I think that it's clear and that it's a problem of OpenSolaris/Solaris.
As driver for his WiFi card is from OpenBSD http://www.opensolaris.org/os/community/laptop/wireless/iwk/ it will be good if he will test it on OpenBSD (I can help him with it).And it will be good to see differences between OpenBSD and OpenSolaris versions of driver because no problem on OpenBSD as I know. -- This message posted from opensolaris.org