Hi, first of all, my apologies if this post isn't in the correct forum, it's my first time/post here.
Anyway, i've attached a link to the packet tracer file below. So currently, i've set up the appropriate vlans on all the access switches, i've also set up the trunk ports from the access switches to the distributor switches. In addition, i've also configured the sub-interfaces on the router. At the moment, the "server" end devices are able to ping each other. however, all the other end devices can't seem to do the same. I was hoping someone with more knowledge could help me out. I don't want answers per se, just what i have done wrong so i can learn and fix it. P.s the console password is "cisco" and enable password is "class" if you need to see the configurations.
https://www.4shared.com/file/9eaL2VM_ca/Pat_packet_tracer.html
Thank you so much in advance.