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Forum Discussion
jkeats
Mar 19, 2015Novice
Fast LAN speed/slow WiFi speeds
I sent in a ticket to support on this but still haven't come up with a solution so I thought maybe some forum users might have an idea... I've got the WNDR4300 with the latest firmware. I use an A...
- Nov 02, 2015
Doing a factory reset on my router WNDR4300 with latest firmware solved the issue. Now I am able to get 89MBPS on 5g & 75MBPS on 2g. Thanks a lot.
Isaac85
Nov 25, 2015Tutor
8Ohms,
I have exactly the same issue. Cable router C3700 and Comcast provider. On wire I have +120 Mbps but on wireless 2.4G ranges from 2 - 27 Mbps and 5G ranges from 30 - 48 Mbps. I really want to know how to fix it too. My router is still under warranty and I may go change it if this continues as most devices at home only compatible with the 2.4G and the 2.4G sometimes totally drop to no internet.
NetGear Techs,
Please look into this and provide any help you could ASAP.
Thanks Isaac
carl321
Nov 25, 2015Star
PROBLEM SOLVED !
As you may have seen ive been having alot of issues with this device. The solution is DONT BUY this device if you are with COMCAST !. Here is why:
1. Slow speeds on wifi were due to an out dated firware version on the device according to NETGEAR (Tier 3 agent at the HQ in California)
2. After a FCC complaint that I filed; someone from Corp office at COMCAST called me. HE checked with his senior engineers and said that COMCAST does not have the latest firmware for the netgear device. He accepted that the firmware is completely handled (updated) by COMCAST and not NETGEAR (for the first time)
3. So basically dont use this device on COMCAST and if you want to but your own device in the future please check the compatible device which have been tested and passed with a 3 star rating at COMCAST website. link : http://mydeviceinfo.comcast.net
| Make: | Netgear | |
| Model: | C3700-100NAS (Retail) | |
| Retail: | Yes | |
| Device Type: | Gateway | |
| DOCSIS Version: | 3.0 | |
| End of Life? | No | |
| Certification: |
certification should have 3 stars according to COMCAST for that device to have the latest firmware on it !
If you look carefully on this list Netgear device is not properly tested at COMCAST and they will not be doing anything in the near future. However Motorola / ARRIS devices are fuly supported by COMCAST (becasuse they own 10-15% of ARRIS
)
Sadly ARRIS devices arent the best and their wifi signal strength is absurb compared to some other providers.
---------
I bought a Airport express router for $85 on amazon and this has fixed all my wifi issues. (thank you Apple)
Basically im using a $150 device as just a dumb modem 
Only if I knew about this corporate mumbo jumbo earlier. God Bless America !
- Isaac85Nov 25, 2015Tutor
Hello Carl 321,
I don't think the firmware version isn't updated for Comcast as I have the latest firmware version per the below matrix in this link http://kb.netgear.com/app/answers/detail/a_id/25477/~/current-firmware-version-for-netgear-cable-modem-routers
Thanks
Isaac
- 8OhmsNov 25, 2015Guide
Well, ths sucks.
If you look carefully on this list Netgear device is not properly tested at COMCAST and they will not be doing anything in the near future
Make Comcast looks like they are deliberately trying to bring down Netgear reputation. Can the FCC fine them like Volkswagon has been for emission violations???
- Isaac85Nov 25, 2015Tutor
I think Netgear should allow users to manually update firmwares.
- ElaineMNov 30, 2015NETGEAR Employee Retired
Per engineering, running 2-27Mbps is not bad at all in a noisy 2.4Ghz environment. If 5Ghz is better, we advise that you use that frequency instead.
Comcast has 2 classes of devices Retail and Commercial devices. Commercial devices are sold directly to Comcast and Comcast distributes them to their customers and these devices go through very extensive testing. Once a commercial cable gateway or cable modem has been certified it gets a 3 star rating. Retail devices are sold through retailers and are certified with Comcast as well but the testing criteria is different and once a retail cable modem or cable gateway has been certified it gets 1 star rating which means that it has been certified and is compatible with Comcast’s services. Currently there are no 3 star retail only cable modem or cable gateway because Comcast will not go through additional testing on retail device if they do not plan on selling them commercially as it requires a lot of extra time and resources.
Isaac85 The DOCSIS security/design requirements do not allow cable modem manufacturers to allow manual FW updates. All FW updates must go through the DOCSIS system where ISP's certify the FW then that FW is uploaded to TFTP and provisioning servers then pushed out to the users. The FW is secured using digital certificates and during the update process that digital certificate has to be verified for the FW to be successfully updated.