Cisco Packet Tracer problem

[azux14]

Hey guys, 

I'm in College and quite bad at networking. I'm hoping you can help me. I had to design a network for small business which has 6 departments. I calculated the IPs and subnet masks for all departments. I've set the router to 192.168.1.1 and subnet mask to 255.255.255.192. When I try to ping from the PCs in Packet Tracker only the Software department gets a reply, all other pcs "request timed out". Can you please help ? When I changed the router subnet mask to default 255.255.255.0 the problem persists and only PCs labelled software get reply from router.

Second problem is, I set up the DNS server and configured the PCS but when I try to ping by name I get request timed out on all PCs.

Third issue I want to create VLANs can some please direct me to good tutorial?

Attached is my Packet Tracer file.

Thank you, your help would mean a lot.

**UPDATED

[DrWilson1]

Ok thought I was the crazy person...just like in the field.

[onezeros]

Try this Video for configuring DHCP, DNS, and HTTP (Web services).

https://youtu.be/rbxZxFLjvhk

[jawadsarwary8778207]

Hi Dear , 

i'm having problem with Cisco packet tracer, it does not show devices icon on the screen, it says file not found.would you please help me what is the problem.

thanks

[abanobzaher96719]

hello there 

i want help ,

my problem : when i double click in "pc pt " for configurate black screen appear

[Georg Pauwen]

Hello,

which version of PT are you using ? Post the zipped Packet Tracer project (.pkt) file...