Related to ticket: 07948600
The NetGear R7000 should be a preferred router, based on the R6400 recommendation from RingCentral as a recommended router.
I am posting these details in case someone has investigated this problem and solved it better than I did. I replaced the router with an ASUS and got no more problems. Please share if you actually figure out what is happening.
Description:
Router is NetGear R7000 Nighthawk. Firmware: V1.0.9.12_1.2.23
Default configuration, no QOS, no port restrictions.
Plenty of speed - 10Mb/s up and down minimum on Comcast.
10 phones, Cisco SPA-508G, purchased from RC.
About 2-3 times per day, one of the phones loses its registration - two lights turn orange, status on line 1 is "Registering" or "Registration failed". Resetting (re-powering) the phone is the workaround. Resetting fixes for at least hours, often days.
What does NOT fix it - DHCP changes, DNS changes, disable SIP ALG, disable DOS/portscan protection. All were recommended by RC support, no effect. There are no IP conflicts and the IP #s assigned do not bounce around.
Ideas:
- Does everyone use QOS? Maybe with QOS set up, this never happens.
- Doesn't seem to be an option other than "Disable port scan and DOS protection" to turn off stateful inspection or NetGear firewall features. Theory would be that the router thinks the phone is attacking or using too many resources and locks it out temporarily.
- Other explanation?
Mine is fixed -- but this could help other users with NetGear routers.
The irony is that I know exactly what the details in this document refer to and I turned them all OFF. We have excess bandwidth and no outbound port restrictions. We are using a recommended router. So this isn't a guidance question for an unusual network. It is a specific problem with NetGear and I wanted to warn others and consult with anyone who has seen this specific thing.
Glad your phones have never lost registration -- it becomes technically very frustrating.
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