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Forum Discussion
C7000-100NAS randomly drops internet connection
Hello, My C7000-100NAS modem seems to randomly drop it's Comcast connection. This happen on 2.4 ghz, 5 ghz, and wired connections. There is no pattern, however the dropped connection usually last...
I have similar problems with my C7000 and it's now getting to the point where I may have to dump this device. All I want is reliable internet. I've got Time Warner and I don't think the problem is with them. I'm a Network Engineer by trade and by no means does that make me "a "Netgear" expert, it does however mean I possess the ability to troubleshoot further and provide additional information. I've had my fair share of crappy wireless devices along with excellent Enterprise class in Cisco, AeroHive, Juniper, Aruba etc. I'm about to say "to heck with it" and spend $500-1k on an Enterprise device as I've wasted close to that on Linksys and Netgear devices over the years.
The C7000 will randomly drop my internet connection for 60 seconds to 5 minutes. Sometimes, it requires a complete reboot. Sometimes it wakes up from being half dead and I need to do nothing. However, the issues are sporatic but obvious and I would guess Netgear would be fully aware of this bug. One second it will drop ICMP traffic to the internet but the C7000's interface tells me my "Cable Connection" is good and I can ping my LAN interface. Then, it will stop responding to ICMP on it's LAN (internal RFC1918 address) interface but Internet traffic still passes fine. For example, as I'm typing this, I can't ping my LAN interface but I can ping 8.8.8.8 without issue. I just looked again and now my LAN interface responds to ICMP but internet is dead. A few minutes later without doing anything, both start responding. Either way, it's virtually impossible to blame Time Warner for this issue when the local LAN interface won't even respond to ICMP (randomly) and internet traffic responds fine. It's also obviously not a weak wireless signal when I can pass sub 20ms packets to most destinations on the internet but not ping my LAN interface. Bottom line, the C7000 displays such erradic behaviour it doesn't seem stable or this firmware release needs work. Time Warners crappy rented "Technicolor", while having weak wireless signal, is at LEAST reliable.
Netgear needs to get on with a stable firmware release or lose customers. Most people don't know how to properly troubleshoot an issue and for costing $200 plus, they shouldn't need to constantly "troubleshoot" what's becoming pretty evident as a firmware issue. Word of mouth spreads and it reflects in reviews.
Yeah, mine get worse as time goes on. It isn't wireless coverage or signal overlap as I'm a Network Engineer by trade and know how to scan and scope interference issues.
As a good test or temp fix, if you want to see if you're having the same problems as I am (which is likely), when you have wireless related issues: FIRST, disconnect from your 5Ghz network either by disabling/re-enabling wireless or connect to your 2.4Ghz network THEN switch back to 5. Either way, when you disconnect and reconnect from your 5Ghz network, it will (or mine does) connect and work fine for a period of time (10-15 min). Some longer than others. On occassion, I just have to power cycle the C7000 altogether.
I went ahead and took an AeroHive AP which is enterprise class and placed it on a different frequency as the Netgear using the netgear as a local router and the AeroHive as an isolated extension but different network and BAM, the AeroHive works flawlessly as a wireless router while the Netgear (which is in the same room) continues to flake out wirelessly and sometimes as a modem.
It just can't seem to handle any kind of small error correction. Instead, it flakes out for all clients on the 5Ghz network without correcting whatever issue it's having until it reinitiates that connection either by disconnecting the client or restarting the C7000. Pretty bad bug IMO.
SupaPig It is still happening with this account--- I have wired most of the main computers on Ethernet GB backbone so there are only a few that will use the 5Ghz along with customers will use the 2.4Ghz. Looking at the logs it is doing just like you were talking about. I have been working with Netgear support for approx. 2+ years on my home base system (started out with R700 than R7500 and now R7800) due to many issues with code and hardware. The current one that I am now using R7800 has been more stable but it has it issues that we are still working with. If this account were tasking the 5Ghz they would be complaining more. Since for the most part they are not noticing the errors due to them not using their laptops, etc. on a ongoing basics. They are using them between patients they are working on for updating info about what they are doing with each patient. This does not let Netgear off the hook to fix the code.
I'm having the same issues as everyone else. Only had this modem/router for 1 week and it is complete crap. Internet is constantly going down and affects both wired and wireless devices. Often have to reboot the router. Has anyone found a resolution? Or a better replacement? I'm on TWC
I am not a computer engineer, but my son is. My ISP is small and says they don't have the ability to upgrade firmware. Netgear promised to send me a replacement with upgraded firmware (to .23 release, from .15) but what they sent me STILL has the old firmware, still has problems with intermittent wifi dropping of signals. I have spent HOURS today, trying to trouble shoot--hours on the phone with Netgear who now says their "new" modem-router does not come with suport! Netgear wanted me to pay $49, after they'd kept me on hold. They promised again to send a new modem-router, this time with the updated firmware, but the promised email, detailing their agreement never came. I am at my wit's end. If I'm to throw out this $200 piece of equipment, what IS a reliable modem AND router, or modem router? I just don't have the expertise and patience to keep dealing with this kind on NON-customer support!
At this time (for you), there may be only one fix for this problem (other than a different brand of equipment) - the C7000 needs to be "reset" in order to return to proper functionality. This can be easily done each night (or early morning) by using a $5 electrical timer that disconnects power to the C7000 each day from 10 minutes to an hour - what ever is most convenient for setting the timer's "ON" operation. Shutting OFF and then powering up the unit with restore it's functionality until the Cable Supplier's signal again causes the C7000 to malfunction. If the malfunction occurs when your needing internet service, then logon to the C7000 and reset the Modem from your PC. On "restart", the problem should be resolved. The updated C7000 software requires the Cable company to install, since the revised software must be compatible for their system. The problem you are experiencing will be resolved once the Cable company upgrades their service. This is a good example/reason for using separate modem and router units. In the case of the C7000 modem/router, it is likely that the modem section is at fault - or the combination of this particular modem and the Cable company's system.
- These other people should really read your post I nm stead of asking the same question over and over
