From a the thread from a duplicated bug report (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/340418/comments/40) I got the following work-around:
add to "/etc/modprobe.d/options-iwl3945.conf": options iwl3945 disable_hw_scan=0
For testing purpose do rmmod -f iwl3945 && modprobe iwl3945 disable_hw_scan=0
For me this seems to have 'fixed' the speed drop. If others could test this as well, it might help in narrowing down the exact problem.
From a the thread from a duplicated bug report (https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/340418/ comments/ 40) I got the following work-around:
add to "/etc/modprobe. d/options- iwl3945. conf":
options iwl3945 disable_hw_scan=0
For testing purpose do
rmmod -f iwl3945 && modprobe iwl3945 disable_hw_scan=0
For me this seems to have 'fixed' the speed drop. If others could test this as well, it might help in narrowing down the exact problem.