Upload speed under-provisioned

It was the signal. The line work on Friday didn't change much (the speed was up to 26.5, just under the single-channel limit), but the tech just came over today and immediately confirmed that our address was flagged for noise and filtered at the drop (little green box by the curb) My guess is that we were probably filtered long before we upgraded. He checked all the ports to ensure that the connections were good (had to enter the house), then removed the filter at the drop. Confirmed that all four channels are locked in and I get 42Mbps.

awesome!

Can you send a screenshot of the upstream signals before and after filter?

Sure - the first is before (copied from above), and the second is after. The before is at the tap, and the after is with one -3.5dB splitter plus a +11dB PCT active return amplifier (it likely is not needed). The important bit is that the other 3 channels are locked on, allowing bonding for speeds >27Mbps. Also, the event log does not contain any more T3 timeouts. 

Speedtest for good measure. The MB8600 with LACP is also quite buggy, and after about 4 days or so I do need to hard reboot; unplugging cables isn't enough. With the 1.2TB caps coming to the Northeast next March I may end up just renting the XB7, since it is oddly cheaper to get unlimited through that vs using my own modem ($25 vs $30), and has a 2.5GbE port so I can do away with LACP:

Here's some photos of the drop just outside of my house - there's about one for every 2 houses. Also, there's a taller box that I think is related, but this one had the trap. The local line workers scan the neighborhoods for noise, and the tech told me mine was flagged. So they installed a trap like this one (made by Arcom, but I think it was red?) in front of my line, likely many months ago before I even upgraded to gigabit.  

Same issue here, finally got them out and new line was run direct to modem as there was noise related to the house wiring , noise trap removed and full speeds!.

Are you saying if you rent a modem data caps do not apply? i have a 1.2tb  data cap and its pretty easy to hit it with just kids using youtube daily and basic internet use, its pretty obnoxious to have that cap on a gigabit plan...

thanks for your help! got me going in the right direction.

Nice 🙂 

Renting the modem doesn't lift the cap by itself. From what I understand, the options are:

• Overage fee of $10 per 50GB (up to $100)
• Use customer owned modem $30/month for unlimited
• xFi Complete, which is actually the rented modem ($14) plus unlimited ($11), so $25/mo

Interesting that in this case, renting for unlimited is $5 cheaper than using owned modem. I'm guessing that for Comcast, they don't have to worry about supporting all the third-party modems as much, and they get to expand their xfinitywifi hotspot by default, so that's a win over the capital expenses. Agreed - we have 3 WFHers and a college student, using about 1.4TB right now, so trying to evaluate the situation before the cap officially is enforced in March. The reason to upgrade to gigabit was the upload, for work purposes.

9 month old dead thread closed.