Think I may have found the problem...
I have a Belkin wireless router that uses it's own Hi-Speed mode (125 HSM), which is supposed to give a 30% boost... Gone into the set up page and put it back to standard 802.11g mode.
[Quote from the Belkin manual]
Selecting "125 G PLUS mode" will result in all devices running in 125 G PLUS mode if all devices are capable of 125 G PLUS mode speeds. If any non-125 G PLUS mode device connects or associates with the network, the router will automatically shift the entire network back to Frame Bursting Mode.
Selecting "Frame Bursting" will result in all devices capable of Frame Bursting to function in frame bursting mode, and all clients not capable to operate in normal 802.11g modes. Frame Bursting mode supports both Frame Bursting enabled devices and non Frame Bursting enabled devices simultaneously. Frame Bursting mode is based on the unreleased 802.11e specification.
Selecting "Off" will disable all turbo modes
[Un-Quote]
Everything seems to have settled down now
