Mac OSX (current) on iMac, running Chrome (current):
I have Comcast "Performance Pro" internet, billed as 100Mbps download speed. Until recently, I was using the cable modem router they supplied, a Cisco DPC3939 DOCSIS 3.0 unit, paying them $10/mo. My computer (& laptop, iphone, ipad) connect via WiFi and I always had good connectivity & speed.
Then about a week ago I called Comcast & successfully negotiated a price reduction in our service (& they promised no degradation of internet speed). I also bought my own cable modem router in order to eliminate that $10/mo. from our bill. I purchased one of the units that Comcast themselves recommended, an Arris TG862G-CT that was used, but factory reconditioned.
I hooked it up per instructions, called Comcast to activate the equipment and saw 100Mbps download speed after they reset & configured the modem. However, since then my connectivity has become very slow. I called back & a technician walked me through testing different channels. We settled on Channel 6 as having the fastest speed, but the best I can get now is only mid-60's and on my laptop & ipad it's horrible--like sub-20Mbps.
I know you're not supposed to get full speed when connected via WiFi (one of the Comcast techs told me to expect about 50%), but what I'm getting now is horrible. Could it be that Comcast is not delivering the promised service or that some settings need to be changed or that the Arris I bought is flawed? Do I need to bite the bullet & go back to paying Comcast their lousy $10/mo. & use their equipment?
Any help would be appreciated!
Moved to Networking.
Edited by NickAu, 04 January 2017 - 05:02 AM.