wireless connection- ruckus intermittent issue
We have the following setup:
XP clients, 2008r2 server, 9 new HP 620 laptops with b/g/n wireless, 100mb wired network. Desktop PCs work fine, generally quick internet and network access, 2mb upload, 4mb download. 9 Ruckus zf2942 APs around the school, b/g only. Ruckus managed controller ZD1012.
In our ICT Suite, there is 1 dedicated ruckus AP, plugged into network. The desktops PCs plugged into our network work fine- internet speed is sufficient and generally constantly available.
However, the 9 laptops connect intermittently, almost in groups at a time. Although the wireless icon shows connected, with full strength, some will be able to 'download' from the net when others can't and then it seems like they switch. With only 9 laptops, it's not like it's over burdened. Seems random.
Any ideas? Any settings that I could tweak? Or do I need to fork out and get an engineer in?
Thanks in advance :)