Put the DSL modemrouter in "bridge" mode, so it is only a "dumb" modem, and run pfSense on some older HW. Or use your wireless router or another high end router. Most things you can buy are better than the stuff your ISP gives you. I have an Atom powered pfSense box and it works great with heavy traffic on 30/30 + 12/1 line. Never any trouble. But the Thompson that came with one of the clients could not even handle me seeding Ubuntu...
Thanks everyone and specially you TechCF your idea to turnoff the router in the modem solved the issue. I am familiar with pfsense, had one running a while back but verizon upgaded my service and sent the new ADSL 2/2+ modem had to use it or I didn't get full speed 500KB/s~700KB/s I assumed I couldn't turn off the useless router part of it since the option is actually hidden in the router/modem menu. After doing a search I found it turned it off and it's just a dumb modem now and my linksys router is handling it fine for now so I won't rebuild the pfsense box just yet, unless it starts giving me issues :p hehe
now happly mining all the singles on BFGminer 2.4.4, it's nice being able to see all the miners on 1 window. Really good job on your branch version luke-Jr thanks, I actually wasn't aware of there being a separate miner based on cgminer until you posted, from reading the forum I assumed you worked directly on CGminer