I've done some searching but can't seem to find an answer to my problem. I have a 2008 24" iMac which is connected wirelessly to a Billion 7404VGPX modem/router. I've always had sporadic connection issues with it but they seem to be a bit more prominent now that I have a NAS in the network. I can get a connection to last for ~12 hours before I get disconnected within the LAN only (internet is fine). All indicators say that I am connected - share folders are visible, Time Machine does it's auto backups as scheduled. However, when I actually try to access the share folders via Finder, or try to do a manual TM backup, I get a message stating that the location can't be found. If I turn off airport and turn it back on again, it's all fine. Interestingly, I can command -k to the specific location fine. Does anyone have any ideas on how to resolve this? Thanks.