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Forum Discussion
LJ3000
Aug 19, 2021Guide
Significant Drop in download speed cbr750
CBR750 — Orbi WiFi 6 DOCSIS 3.1 Mesh WiFi Cable Modem Router Firmware version V4.6.3.6 App version 2.11.0.11 In last two days, my Download speed dropped from between 1200-1400 to 500-600. Had t...
Triggs21
Sep 06, 2021Star
St james, what did you do to fix this. I havent tried speed testing wired to the modem yet. Did try a factory reset to no change in speed. Havent powered off or unplugged router yet. If this issue has effected so many ppl with comcast yet isnt orbi addressing this with a fix to this last broken firmware...
stjames70
Sep 06, 2021Guide
I didn't do anything.
Just like everyone I was very frustrated, called Xfinity (and let me tell you, they will do anything possible NOT to come and check your line), and finally I just sat back. I did get a call from Xfinity which said that they identified some issue with the internet, and that they had resolved it.
I had 600 Mbps at first, but it went up to 950Mpbs-1000Mbps. I made sure my satellite had a good backhaul, and after that, most everything was just fine.
I really think it is some issue with Xfinity's coax line. And as I said, if you use Netgear's tools to check your speed, they will be innacurate. Just use Speedtest.net or the app, and you will get better (and more accurate) speed readings.
I only use the coax line for internet, so I found the splitter, and made sure that the line coming from outside only was connected to only ONE device, my cable modem. All the other connections to other rooms in my house were disconnected. Doing that did improve my signal by a factor of two according to Netgear's diagnostics (it went from an acceptable -8.0 dBmV to a low of -3.7 dBmV on some channels). The signal though, still fluctuates to unnaceptable levels some days above -8.0 dBmV, and I don't even get a signal from channels 31 and 32.
Unfortunately, I cannot assure you that what I did made the difference, but I can tell you that the signal was weaker in my case before I stopped it from being split.
- Triggs21Sep 07, 2021StarIn my case i dont think its a coax or even an xfinity issue, it was a new house with new coax getting legit 950 down steadily after multiple tests then immediately after the firmware upgrade now only getting max 650 down. Factory resetting did not help obvi since its still on the same firmware after the reset.