LS2.0VL Random Disconnects from Network

[skyagade]

After over two years of working fine, LS2.0VL is now randomly disconnecting from network. Manual reconnect with NAS Nav doesn't restore connection. I have to reboot Win 7 workstation to reconnect. Also file saving to NAS sometimes does not save latest/last version of file.
I don't know where to start troubleshooting this problem; I've read about updating firmware (which is current, v1.62), setting static IP (which I think I've done, but not sure), accessing logs, etc. but some is beyond my understanding.
Any elementary, beginning steps would be appreciated.

[davo]

First backup data, then log into the web admin and click system - restore/erase - restore linkstation to factory defaults.

[skyagade]

I think I've figured out what happening. Used another workstation (ethernet-connected desktop) without any disconnect problems. Went back to original workstation with disconnect problems (ethernet-docked laptop) and switched on wireless instead; worked all day without any disconnects. So I'm surmising that ethernet cable is/has gone bad. Will replace cable and try laptop ethernet connection again to make sure that's problem.