XB8 UI Issues

SeattleMatt73

Got sent a XB8 today... has anyone run into issues where the diagnostics are all F'd up? I signed up for the 2000/300 tier - but the modem is only showing like 5-10 downstream channels, and only 2 upstreams.

I'm getting the speeds, but wondered if anyone has had a XB8 that only shows you partial information for the channels.. like, I don't see anything for my OFDMA upstream channels... and I only show like 10 DS channels other than the 2 OFDM channels... seems like a weird UI bug

cypherstream

SeattleMatt73 I’ve seen reports of that on dslreports awhile back. Maybe some of those posters can share what they see.

But yeah it seems some of the new firmwares with the L4S LLD stuff in it screwed it up.

kmax

It has been messed up for quite a while.

Ye old Comcast won't fix it unless prodded. Which I suggested and two basically laughed. And here we are, a few months later and still not fixed.

jweaver

Yeah. Don’t expect them to fix it, as long as it’s performing as it should, I wouldn’t be concerned. Even their DNS hijack broke with the latest firmware, which I’m surprised they’re not yanking firmware over that. You’d think that would be a red alert for engineering.

SeattleMatt73

jweaver Thanks all! Download speeds seem to remain decent - but the 300 upload is almost impossible for it to hit - even on a hardwired connection. It’ll spike up to 310, then the majority of any upload (or test) is around 220 or so.

computerman2

Been like that for a long time now, though not seeing any noticeable performance issues, and tomorrow when my Galaxy S25 arrives i'll have another WIfi 6E capable device to see more how 6Ghz portion performs, though when i used it with Desktop PC a bit as a test when i first got this Desktop if ran perfectly fine

SeattleMatt73

computerman2 Yeah, the Wifi 6 is a nice feature. I was pulling over 1000 down over Wifi

SeattleMatt73

Just to give an update - reported the upstream speed issues over on Reddit - gotta admit, that team was amazing at getting back to me. They set up a tech visit this morning - he already was here early.

Saw the issues I was seeing with the throttling, etc. Agreed my signal levels were amazing. He left, and I gave the feedback to the Reddit team. But then I was surprised he came back about 20min later to tell me he saw issues with the OFDMA upstream channel at my node and has reported it to line maintenance. Really appreciated he went an extra mile to look into it.

Overall, a really great experience w/ customer service and the tech help.

Donawalt

SeattleMatt73 I have found the Comcast tech support on reddit is truly the best. It's the only place I will go now if I need their help!

EGee

Donawalt FWIW. The reps on the Comcast in-house community forums are exactly the same ones that man the reddit forums.

SeattleMatt73

To close this out, took over a week, but local line maintenance finally worked my node - and now I'm getting max upload speeds on the 2000/300 plan. The speed test shown is Wifi6 on my iPhone 15 - I'll see if I can tweak that DL at all to go higher :-)

They even gave me a $50 credit for the trouble. Comcast on Reddit will be my new go to for anything. The customer service was remarkable.

computerman2

Received a newer XB8 Firmware over night, Ui issues still the same though

Previous Firmware was 7.9P9S1 prior to this one

SeattleMatt73

computerman2 Thanks for posting this - Software Image Name: CGM4981COM_7.6p9s2_PROD_sey is what I'm still on here in Seattle.

swilliams

My XB8 channels have been pooched for months now. Disapointing they've never bothered to fix it.

jweaver

swilliams Even their DNS hijacking/intercept broke as well. I'm more surprised they are letting that slide. This is what happens when Comcast has firmware like this. Prioritizing LLD and essentially bypassing real testing while introducing an onslaught of bugs that are more embarrassing that they even exist. Their gateway's basically get almost automatic approval.

They wouldn't like me as I would keep rejecting the firmware, I would keep sending it back.

SeattleMatt73

After getting p14 a week ago, noticed I got p15 a day ago - and yep, the stats are broken again for channel signal data…

kmax

All normal then.

fmd

When my modem got switched to RDK-B, the stats page got mangled up (not fixed yet). The vendors seem to have various issues with it. The first x revisions had some serious bugs that affected the operation of the modem. There are still some bugs, three years in. 🙁

Some bugs are introduced by external modules. My provider uses a module from F-Secure, which shipped with some very annoying issues. The wifi is controlled by a module from Airties.

Aceq2jot

I got a new XB8 yesterday and it has the newer 7.9p15s1 software and it is buggy as the software the old modem on whether it will show anything as far as signal and channels. I find myself refreshing the page to get it to update and sometimes i get lucky and can see everything.