Can't log onto server from from admin vlan

[gl2u2]

Just returned to school after break to find that clients on our admin vlan can't log in to our servers and clients on our curriculum vlan can log in but have no internet access! We use 2 subnets - admin 10.232.74.0/24 and curriculum 10.232.76.0/23. On admin PCs I can ping the gateway but not the servers and on curriculum I can ping the servers but not the gateway. Any ideas where I should start troubleshooting?