rosswilson

Thanks for the good analogy I was trying to come up with one earlier too. But what real "waste" is there in using the 10.x.x.x IP range? After all, the whole 10.x.x.x IP range is private. By choosing to use 10.x.x.x instead of 192.168.x.x or 172.16.x.x just means actech has a lot more IP addresses to play with (3 octets) ... and it would seem he will need a fair few IPs if all his other schools are to be connected onto the same LAN/WAN/MAN. 10.0.0.0 - 10.0.7.255 would be his first subnet, then 10.0.8.0 - 10.0.15.255 would be the second and so forth. 10.255.248.0 to 10.255.255.255 would be his last subnet. By using the 10.x.x.x private address range actech can have 8192 (/21) subnets. If he had used 192.168.x.x he only has two octects to play with, thus reducing the amount of (/21) subnets he can have to 32. Ross

But if he is subnetting his network with a /21 subnet mask then the whole concept of Class A, Class B, and Class C networks disappear. What was once referred to as a "Class A" network is simply a subnet with a /8 subnet mask. The concept of Class ABC networks was before CIDR subnetting was introduced. Quote from Wikipedia: Classful addressing is obsolete and has not been used in the Internet since the implementation of Classless Inter-Domain Routing (CIDR) starting in 1993. For example, while 10.0.0.0/8 was a single class A network, it is common for organizations to divide it into smaller /16 or /24 networks. A classful network is a network architecture used in the Internet until around 1993. It divides the address space for Internet Protocol Version 4 into five address classes. Each class, coded in the first four bits of the address, defines a different network size (number of hosts), or a different network type (unicast or multicast). Maybe I am interpreting you wrong, but how will the OP be "extremely underutiliz[ing]" this "Class A" network? Ross

I think he is proposing to use the a /21 network mask for his subnets. It just so happens that he has chosen to use the 10.x.x.x IP address format. So the quote above is not strictly true; yes 10.x.x.x subnets do exist and they commonly have a /8 subnet mask, but in this case the OP has chosen differently. A /21 subnet mask would allow up to 2046 devices on one subnet. However, I do agree with you that it remains good practice to keep to the 512 devices per subnet rule. Ross

Worked for me wiggum123 Running on Mac and using Chrome. Ross

Nephilim, could you expand upon this a little please? I am in a similar position to actech and i'm intreiged by your mention of "over lapping IP addresses". What do you mean? Sorry for slightly hijacking your thread actech, but hopefully my question is something that crossed your mind too Many thanks, Ross

I've just had a look at your site and i'm curious about a section of JavaScript that you're using. Look for the div tag with an ID of "_atssh". Within this is a few lines of JavaScript that appears to be related to the bookmark sharing service addthis.com. Is this meant to be on your site? There is a lot of Google Analytics JavaScript in your page source, some of which seems to be duplicated many times. Maybe there is something going on here with regards to the duplicated Google Analytics code all trying to record the users navigation and clicking of links? I can't imagine they are playing too nicely together. Apart from the large amount of JavaScript being used on the site I noticed that you're using jQuery. I know that jQuery has the ablity to hook into mouse clicks, possibly try using the latest jQuery version? It's a difficult problem to diagnose with so much JavaScript going on, all in seperate .js files. However I hope this is off some use. Ross

I agree with john; setup two groups. One security group "ReceptionStaffSG" and one email distribution group "ReceptionStaffEmail". This way you can have control over who gets access to the file shares, to email, or to both. Ross

When you turned off the strong password requirement in the Default Domain Policy did you disable the particular group policy settings ("Passwords must meet complexity requirements" and "Minimum password length" ect) or set them to Not Configured? I only ask because I have run into this problem with other group policy settings where the Local Security Policy has overridden the Group Policy. If you explicitly Disable the settings in Group Policy the client will respect these settings. Ross

No problem glad I could help. Ross

The APC Calculator is a good tool to get an idea of server run times for specifying a UPS: UPS Selector Sizing Applications Ross

So when a user trys to login as soon as the machine boots, thats when the problem occurs? But if they wait a minute after sitting at the logon screen their logon processes as normal? Then could the computer be trying to connect to the network just after the login screen appears, and when the user trys to login the computer hasn't yet realised the network is unavailable? I've seen this happen for laptops that cannot connect to the wireless network until actually logged in so that the (poorly written) drivers can load up on logon. In Group Policy there is a policy setting called "Always wait for the network at login" (maybe worded slightly similar, can't remember the exact wording). Could this be of some help? Ross

I've come across this before too. I solved the issue as Dan-Speed suggested by disabling Quicktime browser plugin. As an aside I believe Facebook uses Quicktime to play the "pop" sound when a new message is received. Ross

Just out of interest ... how does your system know the user's password? I was under the impression that AD passwords used one way encryption. Does your system therefore just store a separate list of user's passwords (much in the same way as the spreadsheet method)? If it does, when a user changes their password (for example at the "change password on next login" prompt, how does your system stay in sync? Kind Regards, Ross

Yeah I noticed that too. Looks like we're the only two that watched the video properly Ross

Try testing this stuck key theory by unplugging the keyboard and using the on screen keyboard. Ross