I noticed in one of the threads below it was stated that we have been unable to confirm Snow Leopard on non-MLTI machines. I can confirm this. It is NOT exclusively an MLTI issue. I have several teachers and administrators with brand-spank-me new MacBooks and MacBook Pros running Snow Leopard who are crawling to and from IC. It is a Mac/Snow Leopard issue behind the Joebox. I don't know about other firewalls, but I do know that some(but not all) home networks seem to fine. I have also turned off filtering (still going through the Joebox) for a specific user with Snow Leopard and that seems to have no impact. Hope this helps.
H
From: Joebox User [mailto:[log in to unmask]] On Behalf Of Chuck McLaughlin
Sent: Tuesday, November 09, 2010 2:01 PM
To: [log in to unmask]
Subject: Re: IC
Hello,
Please excuse me as I paste in my parts of this same conversation from the ACTEMLIST. I have attacked it from filtering, DNS, hosts files, and now firewall. At my site it seems to be "Snow Leopard" traffic confusion through the Joebox/new circuit -it is slow -but it does resolve if you can wait. We have 1 to 1 grades 5-12 for 800+ laptops. Browsing speed is great except for IC. As you will see in the prior threads pasted below our problem appears to only exist in Snow Leopard connections -but not many other OS computers connect to IC concurrently. The 600+ MLTI units dominate the network.
Chuck
Charles L. McLaughlin, MA Ed Leadership, PK1, A+
Technology Director
MSAD#55
137 South Hiram Road
Hiram, Maine 04041
[log in to unmask]<mailto:[log in to unmask]>
----- Original Message -----
Hello,
Possibly as part of the wind/rain storm outages we fried our SonicWall so we had to setup the Joebox to run as firewall/filter for the short term and we still have the Lag issue. The Xp, Tiger, and Leopard units seem fine (but we do not have many concurrent connections from those OS's). Snow Leopard still crawls back and forth to IC (again we are hosted remotely). For our location we can cross the double firewall off the list as possibly causing the issue.
Chuck
Charles L. McLaughlin, MA Ed Leadership, PK1, A+
Technology Director
MSAD#55
137 South Hiram Road
Hiram, Maine 04041
[log in to unmask]<mailto:[log in to unmask]>
"ACTEM:Assoc. of Computer Technology Educators of Maine" <[log in to unmask]<mailto:[log in to unmask]>> on November 4, 2010 at 1:19 PM -0500 wrote:
Hello List,
We need your help!
One of my sites -MSAD#55 Sacopee Valley HS, MS and South Hiram Elementary
school share a new single 100MB connection through a Joebox. We have
excruciating lag using Infinite Campus when we access our IC Hosted server
with, "my guess"-- 10 or more "SNOW LEOPARD" machines. If just a few
people are on it is slow but useable. XP, Leopard and Tiger are all fine
but the 600+ MLTI machines and a handful of purchased Snow Leopard Macs
are dreadful. I have tried editing the local host files to the one IC IP
then the other and then both, MSLN and I opened all traffic through the
firewall to the two addresses (all but removed the firewall). rerouting
all resolution to one IP then the other, adjusted MTU settings on
ethernet/wifi connections, you name it... "SNOW LEOPARD" is our curse
right now. RSU38 has brought this issue to Apple, I have brought it to
MSLN and IC Support with no resolutions to be found. The only thing we
all know is that the problem seems to be in "SNOW LEOPARD" only... and
this OS works great on "everything else" in my district. IF we do not get
a fix soon I will pitch this year's image for MLTI MS and HS staff and
reimage with a version of last year's image so that we can use plain
Leopard for IC access. My key IC users are already resigned to using
windows terminal sessions on their macs (but we do not have the capacity
to provide all staff Microsoft terminal session access).
This issue is delaying any hope of progressing with gradebook use or
opening the IC portal. Class by class attendance is really annoying the
HS staff not to mention grading. I agree that it sounds like a DNS
handling issue where Snow Leopard is hanging/confused while talking back
to the IC server. I saw on this list where one district had an increase
in performance by using internal DNS for snow leopard to resolve their
internal server. ...But to the IC hosted site through the MSLN connection
-any ideas? Please, ANY suggestions are welcome -on or off list!
Thanks!!
Chuck
Charles L. McLaughlin, MA Ed Leadership, PK1, A+
Technology Director
MSAD#55
137 South Hiram Road
Hiram, Maine 04041
[log in to unmask]<mailto:[log in to unmask]>
"ACTEM:Assoc. of Computer Technology Educators of Maine"
<[log in to unmask]<mailto:[log in to unmask]>> on October 19, 2010 at 10:33 AM -0400 wrote:
>>>> "Peter R. Small, Sr." <[log in to unmask]<mailto:[log in to unmask]>> wrote:
>> Is any other school system still experiencing slowness using Infinite
>Campus?
>
>Sites which do not have a local server have reported random "slowness"
>with little consistency even within a building. We are currently
>investigating it along two paths.
>
>1) Is it an MLTI issue? Most reports have been from people using MLTI
>MacBooks, because most teachers have them. We have yet to hear a solid,
>irrefutable report that the issue occurs outside the MLTI environment.
>
>2) Is it internet traffic/routing? Inconsistent reports of slowness even
>within the same timeframe within the same building tend to indicate the
>cause may be an "internet traffic jam". maine.infinitecampus.org resolves
>to two geographically distinct IP addresses, 207.225.137.100 and
>72.21.235.100. The one to which you are routed, and how you are routed,
>is determined by the load balancing algorithms of MSLN and whoever you
>are passed along to down the pipe. We have set up records in out local
>DNS, "Campus1.rsu1.org" and "Campus2.rsu1.org" which point to those
>distinct IPs. The trick will be to find willing teachers who, when they
>experience slowness, will log out of Campus and log back in with
>"Campus1.rsu1.org", and if still experiencing slowness log back out and
>in with "Campus2.rsu1.org". If we can determine any kind of consistency
>as to which route tends to be the problem we can ask MSLN to do some
>investigation and potentially find a solution.
Charles L. McLaughlin, MA Ed Leadership, PK1, A+
Technology Director
MSAD#55
137 South Hiram Road
Hiram, Maine 04041
[log in to unmask]<mailto:[log in to unmask]>
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