Sudden connection issues

[marsdenprimary]

Hello,

 

Today, for some reason, some of our admin machines cannot function on the network. Our curriculum machines are fine and some admin machines are also fine. We have 2 network cards on our server both going onto our network- we don't have seperate switches.

 

If I change the IP address on this PC to a curriculum one...no problem (i'm typing this!) but if i change it to an admin address...nothing. No network access.

 

HELP!

 

J

x

[Admiral208]

Are you using static IP's or using DHCP? Can you ping the NIC of the admin network card?

[marsdenprimary]

Are you using static IP's or using DHCP? Can you ping the NIC of the admin network card?

 

Hello Admiral,

 

Got it sorted. Don't know WHY they suddenly stopped working but for the last year or so their DNS server settings have been set to 10.51.*.* and their IP set to 10.123.*.* I changed the DNS server settings to be in the same range as the IP address (after successfully pinging it) and now they work. What the???

 

I know i've sorted it...but why should it suddenly make a difference?

[IanT]

Do you not use VLAN's?