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Forum Discussion
sferrell615
Nov 01, 2020Aspirant
CM500V with Comcast - other Comcast landline callers cannot hear me when calling landline phone
I am one of a large number of people having a Comcast phone issue (caller cannot hear me) and the issue appears to be Netgear modem related so I would imagine that Netgear would help to resolve this ...
- Mar 10, 2021
The steps below resolved the problem for me.
The problem has been resolved for several months and has not returned.
- browse to https://connect.xfinity.com/voice/settings/callforwarding
- login (if needed; perhaps re-browse to the address above thereafter)
- remove all numbers except 'home phone'
- disable 'home phone'
- enable 'home phone'
- perhaps remove 'selective call forwarding' numbers (?)
I did not test right-after doing this... I tested 1-2 weeks later (at which point it worked as expected). Therefore I am not certain that this is the fix but I have had a ticket open with Netgear for several months (nothing has been done) and no one has offered other solutions.
FURRYe38
Nov 01, 2020Guru - Experienced User
sferrell615 wrote:I edited the original response via adding question 1.
1) Does performing a Factory Reset restore the original firmware version that was installed on the Netgear modem when I purchased it? No.
If so then the Netgear firmware version has not changed over the 2 years that I have owned the Netgear modem. If that is the case then is it true that nothing has changed on the Netgear modem and becaues a large number of people are having this issue then it is likely that Comcast changed something on their network to cause the Netgear modem this issue (despite not causing other modems e.g. Arris) the same issue. Anything is possible when it comes to ISPs.
We swapped coax lines from the Comcast junction box, we swapped phone-lines, we swapped phones (connected direct to the Netgear modem), we reprovisioned the Netgear modem, we rebuilt the Netgear modem on the 2nd phone line, and we reset the Netgear modem to factory default. None of these changes resolved the issue. Once we replaced the Netgear modem with the Arris modem the issue was resolved. So IMO it is either 1) a change to the Netgear modem (e.g. firmware) or a change to the Comcast network which appears to 'just' cause the Netgear modem the issue (because the Arris modem does not have the issue).
Hence the reason that I am interested in determining if something has changed on the Netgear modem (e.g. firmware).
I would have the ISP look at the FW update history. Again, if the modem had been working up till recently, a FW update may have changed that...
sferrell615
Nov 01, 2020Aspirant
Ok. Will do.
No clue how often issues occur with modems and ISPs but it'd be nice (for troubleshooting purposes) if the Netgear modem at the least listed when it's firmware was last updated and even better if it listed it's firmware install history.
Thanks for your quick responses.
SF
No clue how often issues occur with modems and ISPs but it'd be nice (for troubleshooting purposes) if the Netgear modem at the least listed when it's firmware was last updated and even better if it listed it's firmware install history.
Thanks for your quick responses.
SF
- FURRYe38Nov 01, 2020Guru - Experienced User
FW updates are something that all cable modem ISPs control. Modem mfrs don't have much control if any over this.
- sferrell615Nov 14, 2020AspirantAgain while I appreciate your response and I'm OK with accepting that the ISPs are responsible for deploying the firmware releases, the ISPs do not create the firmware releases. Netgear creates the firmware releases for the Netgear CM500V modem including the latest firmware version V1.01.10 release. Netgear "should" be able to look at their firmware version releases and determine if it was within the last 6 (or so) months.
I received the new CM500V modem and it's having the same exact issues as the old CM500V modem.
As a reminder, in between these 2 CM500V modems (which both had this issue) I was using an Arris TG1682G modem which did not have this issue. Do you see a pattern?
I called Netgear last night at 10pm EST. The 1st call took 1.5 hours to speak to the right dept (CM500V voice) then the call dropped on the other end and I was not called back. I called Netgear again and after another hour I got thru to the right dept. The tech said he did not know when the last CM500V firmware version was released to Comcast but others were reporting this problem and he'd get back to me within 1 or 2 days via email and/or phone.
TBC- FURRYe38Nov 14, 2020Guru - Experienced User
You'll have to work with NG support on this then. This is something the forums can't help with. Good Luck.