PDU failed in Packet Tracer (LAN, WAN)

[la-la]

Hello everybody!

In a Lan - Wan - Lan network topology, the following problem is occurring:
When I send the PDU from Lan 1 to Lan 2 it fails.
From Lan 2 to Lan 1 is successful the second time.

How can this problem be solved?

[Martin L]

that is correct because of this WRT300 wireless home LAN router which works like real one at home.  You can only initiate traffic from home via WRT300 towards the Internet; anything else - like from outside - is blocked by WRT firewall;  Like Linksys device at home, WRT performs several roles: firewall, DHCP, DNS, wireless router, LAN switch. 

Regards, ML
**Please Rate All Helpful Responses **