XB7 vs XB6 initial performance disappointment

Oldmanriver1 - at least you got a definite maybe things may or may not get better. Sooo, before he left - did you get good down and up numbers?? Does the wifi reach your dvr to show 4k? Mine stopped showing 4k on the meter when I got the xb7, using either 2.4 and 5mhz channels of xb7. But thats another problem, you're still trying to show its good to the xb7. Better that an afternoon soap opera, keep us informed. One thing I wonder, is WHY does xfinity want to open the network with xfinitywifi when the signal won't even go downstairs in the house - well, barely does much less out in the yard or across the street?

I get 4K via Comcast DVR only with certain on demand events via coax connection and moca. Otherwise I stream 4K programming on the 5 Ghz wifi network on a Roku device.
In regards to relorting the speed changes after the good tech visit, either positive, negative or neutral, I'd rather wait a week or so until his attempted changes from the plant signal have a chance of being put into action. I hope you can understand.

Oldmanriver1 - absolutely understand. If the guy was good, give his stuff a running chance to get back and someone maybe adjust and refine numbers. I'm doing a speedtest on my dtv receiver now. When testing of xb6 it would indicate I could get 4k, xb7, this is what its shown. Hope it works good for ya..

Try using a VPN service to see if this device is being throttled.
For instance, my "fast.com" results are now mysteriously capped at about 160-180 Mbps with the XB7 on 5 Ghz wifi.
But on my VPN service it runs almost twice as fast.
It ran even faster on the old XB6 5 Ghz network.
But your results are so severe I suspect there may be another issue.

Oldmanriver1 - I use more firestick4k or chromecast (both pick up the 5mhz better) than directv and won't pay the extra for directv 4k anyway. And the dvr is actually on the 2.4mhz xb7 channel because the 5mhz dropped the signal so bad it kept showing signal lost, even though the tv kept playing because it's satellite, not internet. Xb7 dropped its signal strength from xb6 immediately. Nothing changed, unplug xb6, plug in xb7, wifi signal in the toilet and never came back. xb7 is a fail, wifi6 is a joke.

I did not receive the callback that was foreshadowed yesterday from the good tech who clarified that he was emailing his reports to local Memphis department heads (for a second time). I trust he will call soon.
He told me that he did not submit a traditional maintenance trouble ticket because it would likely be dismissed without action.
To reiterate, my services are all working, but now, after the last on site visit, I am regularly (and no longer intermittently) measuring download speeds that are significantly lower than my gigabit speed tier - always with the admonition to restart my modem. Additionally, my upload speed has taken a significant hit, likely caused by the known low upload SNR.
The removal of the splitter has driven up the power levels on my two 4K X1 DVRs causing a less sharp images on a 75 inch particularly on the higher frequency tuner channels, including my premium offerings.
No one locally is willing to discuss the measured speed to the modem provisioning instability/shortfall issue that was recently verified by the overseas advanced repair agent by looking back over the last 30 days of the XB7 performance.
Maybe there is nothing wrong with the way the advance features of the XB7 modem was designed. Maybe it's just not receiving the lab quality rf signals it requires to deliver its promise.
I wish I could say that I was optimistic that the local rf network/plant signal could be repaired or reconfigured to deliver my services in a more optimal manner.

Oldmanriver1 - your fight is going nowhere and I might suggest these 2 things. Because I've had favorable results in past problems with comcast. Write bbb.org. they take a summary and then more detailed problem - but they have a limit for input, and someone from xfinity will call you in a few days. They finally had a crew at the main intersection with a bucket truck running new cable under the street. Or, go to the store and get another xb6. It'll be someone else's but it'll be an xb6 they I HIGHLY believe us a stronger wifi box than xb7. So you may not get the 1gbit speed but the stronger wifi should kick the dvr to working again. I wonder why I don't swap back to xb6 but I'm tired of the fight. Good luck, but with BBB.ORG it'll go above the local techs and flow back. Plus it puts a complaint with BBB. Good luck. This is my right now, 11/10 at 11:35 speed. Ed

Just to clarify, my Comcast X

Just to clarify, my two X1 4K DVR boxes are connected by coaxial cable to my drop line. They are not wireless.
I appreciate your suggestions.
I received another service credit this morning after explaining the situation clearly to an overseas billing agent. She is referring my case to a billing supervisor. I am promised a call back tomorrow.
The bottom line is that this whole process has been far too time intensive and frustrating.
I will report the outcome, however.

oldmanriver1 - thanks for clarifying, that makes my decision to stay with directv easier!!! Nothing good on TV now anyway. Do you have a firestick4k or chromecast4k to connect to that huge TV? If so try a 4k show off Netflix or Google or prime. That may identify if its cable problems or both cable and wifi. If your TV shows good then its pumping OK through wifi. It also eliminates any problem with the dvr. Orrr, go to directv !!!! Hang in there, its only money :-0.

As I think I previously reported, we successfully use a premium Roku device to stream our video apps, often in 4K.
In regards to switching services, my goal is to stay with Comcast for the duration unless the situation becomes totally untenable.
We have been with Comcast since they took over the local cable franchise from Road Runner over twenty years ago.

oldmanriver1 - all bases covered then. I put an antenna up for directv back when we could buy them from radio shack. And all the screen would say is adjust 3 degrees. Good plan, let us know what they fine.

Note the new development of the slower upload speed that had been clocking in just over 40 Mbps until the recent tech visits.
I had read that one strategy to lower upstream noise (without finding and eliminating its cause) is to reduce the upstrean QAM width by half at the expense of losing half the channel capacity.
I wonder if that accounts for the marked drop off in upload speeds?

oldmanriver1 - has a tech connected to your feed in the ground to see what actually comes from the main neighborhood cable before heading to your house? I once had a bad connector there. It fed me and my neighbor, and it was bad there so they replaced that plate/face that had the connection to the cable that fed my house. Then at the house there was a splitter and it fed 1 tv and the modem. That was when I was experimenting with comcast tv, good but I didn't keep it. Now it runs to the same box on the house and a single connector runs to the xb7.

Oldmanriver1 - my upload tests at 40 also. If I use a switch box I test download speeds at least half of what a straight through cable tests, a reason I like the xb7 over the xb6. Hey, 1 good thing! But the 4 ports are nice and speeds are better than using a switch box. A thought I don't recall looking for is - are all 4 ports equal speeds out of the xb7? If thats how you feed the dvrs maybe move their cables to different ports. But you aren't getting the input anyway to the xb7. I'm lost on what you say on the upload.