Yeah - I can play via cell phone without too much pain, but you pretty much can only 2v2 where it's still reasonable. 3v3 works, but gets awful laggy... but I'm through sprint for cell.
There are quite a few possibilities you can try regarding the cable modem, though. My first thought is to try to move it to a different cable (coax) if possible. Try a different Ethernet cable as well. They can, though in frequent, go bad or be damaged. Then, just requesting a new cable modem might do the trick. I assume that you are probably renting one from them. Might just want to call them, say you have issues with your cable modem where it often loses connectivity (I assume when the internet goes out, you still have tv signal, right?) and you'd like them to bring out a replacement unit for you. If you haven't done this, do it. Cycle the power on your cable modem. If it has a built in backup battery, remove that first. Either way, unplug it for about 30 seconds and then power it up again (put the battery back in before you power it up though). Just losing Internet connectivity at the cable modem is a bit strange in my experience and either points to shite wiring on their part or a bad cable modem. So, in this order, try this.
- Cycle the power on the modem as described - hook up directly to it - play and see if you have outages
- If its an option, move the cable modem somewhere else and use it there - play and see if you have outages
- Change out ethernet cables. Just try a different one - play and see if you have outages
- Request a new cable modem from time warner explaining that this one drop connections alot
I suggest you do ALL of this troubleshooting connected just to the cable modem and then hook up the router when that's done.