This tells you how to prevent regular crashes of the SMC2804WBR router, which only occur when eMule is running.
The most important clue for this solution was derived from a posting of Kinguni in this forum.
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7004VBR freezing every couple hoursSolution Brief
(for mor detail see pdf-attachment)
Windows Settings:
In the Network properties configure network to obtain IP automatically (DHCP)
Router Settings:
In the Advanced Setup Menu configure LAN IP, NAT, Encryption, Firewall, MAC Address and Intrusion Detection
Encryption Settings:
Match encryption settings of router either in the Windows network wireless settings or in the EZ Connect client application.