Solution 5 here might work. But, you're really having ip addresses change on you, so I don't know if the DNS workaround will work in your case. But, you can try it. You can use OpenDNS servers instead of Google's if you want. You can try setting them in Windows or at the router level. Again though, yours probably isn't an issue with DNS.
Also, I'd search the net for Chrome/Chromium issues about this as you might have better luck.