Server isolated from LAN - outgoing connections only

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http://www.kubuntuforums.net – I can't ping my server within my LAN but from my server I can connect to other devices. I always ping via IP address. If I disable UFW there is no change. Flushing IPTables also has no effect other than to stop outgoing connections too. If I ping a desktop and then from that desktop ping the server back, packets are received but that only lasts for a few minutes. Output of sudo iptables -L ----------------------------------------------------- Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target p (HowTos)