Network and Classroom Management Thread, RM CC4 + Laptops on Wifi in Technical; If your on CC4, how are you using Laptops with CC4.
I only ask because we can't use laptops on ...
23rd April 2012, 07:17 PM #1
RM CC4 + Laptops on Wifi
If your on CC4, how are you using Laptops with CC4.
I only ask because we can't use laptops on trolleys any more due to the 15-20 minutes it takes for the laptops to get to the logon screen and actually be usable. They are NEW Core i3 Laptops brought from RM, connected to a managed HP Procurve 802.11a/b/g/n wifi APs (usually connecting at 130mbps but sometimes higher)
Takes them about 5/10 minutes to Apply Computer Settings...
1/2 of the laptops aren't new but stuff have a 802.11n card in, but only a dual core pentium D.
Have tried both Windows 7 and Windows XP (with the former booting quicker, but giving the error of no logon servers available, the latter taking the 5/10 minutes to Apply computer settings)
When the older laptops were on CC3 they booted in 5 minutes or less, so I know it has to be CC4 related, since the other software is still the same (HAP+ Logon Tracker, Sophos Antivirus, etc...)
My current thinking is to stick a switch in the laptop trolley, connect the laptops to that, and that to the network. and use WoL to boot the laptops 10/15 minutes before the lesson they are needed in.
I need some HELP on this one please
IDG Tech News
23rd April 2012, 07:32 PM #2
Not a problem I've seen - this normally just works. Have you asked RM about it at all?
23rd April 2012, 07:34 PM #3
Got a support call open for it at the moment, but they don't seem to be getting anywere, seem to thing it's a WIFI problem, which I know it isn't because the WIFI hasn't changed between the CC3->CC4 upgrade
I used to just bring the trolleys to the class room (2 trolleys with 15 laptops in each, totalling 30)
23rd April 2012, 07:42 PM #4
One of the things that was changed from CC3 to 4 (and still needs changing for CC3 users) is DHCP lease time - it'll be worth checking that it's still not set to the 60 odd days by default. That could cause all sorts of issues
23rd April 2012, 07:44 PM #5
23rd April 2012, 07:49 PM #6
Gonna give this a go tomorrow, try and find out what's making it hang on applying computer settings
How to enable user environment debug logging in retail builds of Windows
24th April 2012, 09:35 AM #7
Ok that didn't show anything out of the ordinary, going to try disabling all but the Microsoft Services using msconfig and slowly add services back
24th April 2012, 09:53 AM #8
Enable the verbose startup messages
Computer Configuration\Policies\Administrative Template\System-Verbose vs normal status messages - Set to Enabled
You should then be able to see what section it gets stuck on
You can also do this with MSConfig I think?
24th April 2012, 11:11 AM #9
Enabled that, it's still showing it's hanging on applying computer settings
24th April 2012, 11:18 AM #10
Hmm, network contention? Does the same happen for one laptop?
24th April 2012, 11:20 AM #11
It's all of them, just seems to be very slow. It's a 802.11N network, the laptops are saying they're connecting at anything above 150mbps upto 300mbps. Just seems something on the RM network is causing a lot of network traffic when the laptops start up
24th April 2012, 11:32 AM #12
So if you were to start up just one laptop, the problem goes away? (well not the problem as such....)
RM put a lot of bit and pieces into their machines scripts, I know the problem you talk of, I used to maintain a bunch of ancient laptops at an old school, was looking at a 35 min logon sometimes and that was with CC3!!!!
24th April 2012, 11:33 AM #13
How many laptops per AP? Is it a managed wireless or one of the D-Link things that RM sell?
24th April 2012, 12:16 PM #14
Depends how the laptops choose to connect, it's a managed HP Procurve system, it can either be 30 or 15 per AP depending on how close the other AP is and what the laptops decide to do
24th April 2012, 12:17 PM #15
We've got some older laptops here which don't even take that long!
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