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Forum Discussion
Redsox3595
Sep 10, 2019Aspirant
Xfinity gigabit issues CM1000/RM6900
Long story short is I had Comcast come and set up gigabit service about a month ago and the service has been terrible ever since they activated it. Using my routers speed test/Xfinity speedtest/and m...
FURRYe38
Sep 10, 2019Guru - Experienced User
Disconnect the R series router and connect a wired PC to the back of the CM modem. Power off the modem for 30 seconds then back on. Speed test with Ooklas speed test app for Windows or Apple. See if your speeds are good here or not.
Redsox3595
Sep 11, 2019Aspirant
I've tried this a few times already. I get the same speeds roughly by plugging into the modem directly. That's why I'm pretty sure it's not my router.
- FURRYe38Sep 11, 2019Guru - Experienced User
Make sure there are no coax cable line splitters between the ISP service box and the modem.
Swap LAN cables when testing directly to the modem.
Return the modem for another to see if problem continues.
- Redsox3595Sep 13, 2019AspirantI removed the splitter that was coming from the ground cable and connecting my 3 lines together and used an rg6 connector to do this. I figured out my cable is rg6 grade and is tri-shield. I'm not sure if this is gigabit ready. Im not sure where the actual main box is for the condo association but I can't see any other splitters near the wire coming through my basement wall.
Any other suggestions?- Redsox3595Sep 13, 2019AspirantWith all of that the speeds are exactly the same. So there's either a splitter somewhere outside near the main box or there's something wrong with my router or modem