+ Post New Thread
Page 2 of 4 FirstFirst 1234 LastLast
Results 16 to 30 of 49
Network and Classroom Management Thread, RM CC4 + Laptops on Wifi in Technical; Quite honestly 30 seems like quite a lot to get onto one AP, especially during startup, if you are getting ...
  1. #16
    Jamo's Avatar
    Join Date
    Jan 2009
    Posts
    1,346
    Thank Post
    66
    Thanked 174 Times in 146 Posts
    Rep Power
    59
    Quite honestly 30 seems like quite a lot to get onto one AP, especially during startup, if you are getting huge contention then more APs or staggering the logons is the best bet especially if the AP isn't managed.

  2. #17
    nickbro's Avatar
    Join Date
    Jul 2010
    Location
    Gilwern, Wales
    Posts
    3,351
    Thank Post
    36
    Thanked 465 Times in 397 Posts
    Rep Power
    105
    The AP is managed though, it was never a problem for the same laptops on the same point back on CC3

  3. #18
    Jamo's Avatar
    Join Date
    Jan 2009
    Posts
    1,346
    Thank Post
    66
    Thanked 174 Times in 146 Posts
    Rep Power
    59
    Contention just means that there are a lot of wireless backoffs and timeouts caused by excessive collisions. If you are using an RM standard logon process and nothing else has changed it suggests that the wireless connection could be the bottleneck?

    Do you have any benchmarks with 1 laptop, 2 laptops etc and seeing where the slowdown begins?

  4. #19

  5. #20
    Jamo's Avatar
    Join Date
    Jan 2009
    Posts
    1,346
    Thank Post
    66
    Thanked 174 Times in 146 Posts
    Rep Power
    59
    Its not just the name, CC3 to CC4, that will have changed though, there could be huge underlying network throughput differences and totally different methods of achieving what to the user seems the same result. The only way of doing this would be to perform some benchmarking.

    Is one laptop quick? Are 10 laptops the same? Is there a limit to how many you can get onto one AP? etc etc, its a pita but there really isn't another way to see what it is that is the bottleneck

  6. #21
    nickbro's Avatar
    Join Date
    Jul 2010
    Location
    Gilwern, Wales
    Posts
    3,351
    Thank Post
    36
    Thanked 465 Times in 397 Posts
    Rep Power
    105
    will have to do some more testing, it's a PITA, just sucks that it's happening, we're not the biggest site, so putting more access points in wont really help things, I think the upgrade to the dual band version of the APs would probably solve 1/2 the problems

  7. #22
    Jamo's Avatar
    Join Date
    Jan 2009
    Posts
    1,346
    Thank Post
    66
    Thanked 174 Times in 146 Posts
    Rep Power
    59
    You could also try running Procmon in startup logging mode and check out hte process tree, it should show any processes which have taken ages to start up.

  8. #23
    rad
    rad is offline
    rad's Avatar
    Join Date
    Jan 2009
    Location
    Middlesex
    Posts
    2,384
    Thank Post
    311
    Thanked 295 Times in 224 Posts
    Rep Power
    106
    Well if its any consilation, I have bought back a trolley of 26 laptops from [Department] all housed in a lovely Lapsafe trolley, all just 3 years old running 4Gb of RAM that have killed their batteries and they too take an ege to log onto the CC4 network. The department dont want them so they will be distributed as standalone Laptops to staff.

    CC4 + wireless logon = mess

  9. #24
    simpsonj's Avatar
    Join Date
    Apr 2009
    Location
    Oxford
    Posts
    368
    Thank Post
    148
    Thanked 64 Times in 53 Posts
    Blog Entries
    7
    Rep Power
    21
    Something I'm looking at here (though login times aren't that slow) is to put laptops and desktops into sleep Mon-Thursday, and only setting a full shutdown Friday evening. Haven't tested it, but should certainly make your boot times quicker...

  10. #25
    nickbro's Avatar
    Join Date
    Jul 2010
    Location
    Gilwern, Wales
    Posts
    3,351
    Thank Post
    36
    Thanked 465 Times in 397 Posts
    Rep Power
    105
    Thanks, will look into it, I really don't think it's a wifi issue, getting reports from staff of Windows XP desktop pcs also taking there time to run through the applying computer settings stage, will have to get RM to investigate this further as something isn't quite right

  11. #26
    Jamo's Avatar
    Join Date
    Jan 2009
    Posts
    1,346
    Thank Post
    66
    Thanked 174 Times in 146 Posts
    Rep Power
    59
    It does sound a bit strange tbh, on my laptop here the applying machine settings is about 2 - 5 seconds so way off anything you are experiencing. RM have had a bloat problem for a while and it could be that wireless is just tipping the balance.

    You could try placing a test machine in a different OU with no policies applied?

  12. #27
    nickbro's Avatar
    Join Date
    Jul 2010
    Location
    Gilwern, Wales
    Posts
    3,351
    Thank Post
    36
    Thanked 465 Times in 397 Posts
    Rep Power
    105
    Will try that now, see what happens, hopefully this wont break the RM stuff

  13. #28
    nickbro's Avatar
    Join Date
    Jul 2010
    Location
    Gilwern, Wales
    Posts
    3,351
    Thank Post
    36
    Thanked 465 Times in 397 Posts
    Rep Power
    105
    Bit more info, moved it outside of where the RM GPOs are, and, wow, it starts so much quicker, starts as quick as I would expect, time to deny apply policy rights to each of the RM policies and try again, slowly add policies.

    Ok, looks like something in the All Stations Policy is causing it.

  14. #29
    nickbro's Avatar
    Join Date
    Jul 2010
    Location
    Gilwern, Wales
    Posts
    3,351
    Thank Post
    36
    Thanked 465 Times in 397 Posts
    Rep Power
    105
    Another update, can't seem to replicate the removal GPOs again now, odd, anyhow, disabled various startup processes using msconfig, seems to have helped, will slowly add them back in see what's locking it up (maybe sophos)

  15. #30

    Join Date
    Jun 2009
    Location
    Watford
    Posts
    845
    Thank Post
    355
    Thanked 89 Times in 65 Posts
    Rep Power
    42
    Could it be that your AV is running a memory scan before connecting?

SHARE:
+ Post New Thread
Page 2 of 4 FirstFirst 1234 LastLast

Similar Threads

  1. Virtual RM CC4 Machine on apple mac
    By tj2419 in forum Thin Client and Virtual Machines
    Replies: 9
    Last Post: 3rd October 2011, 01:53 PM
  2. RM CC4 and non-RM laptops
    By Janyo in forum Network and Classroom Management
    Replies: 6
    Last Post: 27th May 2011, 10:31 AM
  3. Clear IE addons for all users on RM CC4?
    By gsk in forum How do you do....it?
    Replies: 0
    Last Post: 6th January 2011, 11:46 AM
  4. Installing Quark Xpress 8 on rm cc4 networks.
    By radioguyana in forum General Chat
    Replies: 0
    Last Post: 10th November 2010, 06:06 PM
  5. RM CC4 Laptop deployment
    By MNHughes in forum O/S Deployment
    Replies: 2
    Last Post: 11th December 2009, 11:37 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •