R8000 with gigabit: poor WIFI and no WAN

[mwz]

Help.  I just upgraded to comcast gigabit service.   Now the Wan (rj45) ports don't work on R8000 Rounter (or on the cable Modem). Measured speed thru router's wifi is 170 Mips ( up fron 120 with 200MB service). 

Comcast tech said someone might know of a fix for the poor WIFI performance.  Is there one? 

Also, is there a way to get both the WIFI and Wan( RJ45) to work?

[mwz · Accepted solution]

Update:  I paid for Netgear's extended service plan.  They spent about 20 minutes and couldn't figure it out. 

I replaced it with a Linksys router and service is working better.  Both Enet and Wifi work.  (600 mips and 300 mips, respectively)

[mwz · Accepted solution]

Update:  I paid for Netgear's extended service plan.  They spent about 20 minutes and couldn't figure it out. 

I replaced it with a Linksys router and service is working better.  Both Enet and Wifi work.  (600 mips and 300 mips, respectively)