NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
Netgear RBR850 - trouble with Port Forwarding
I just set up an Orbi 850 series Router / Satellite system in my home. The basics all work, I have Internet, Wi-Fi is working, etc.
| Model Name | Device Name | Current Firmware Version |
| RBR850 | OrbiRouter | V4.6.9.11 |
At my home, I have a home physical server on IP 10.0.0.253. On this server runs a virtual server, with an IP of 10.0.0.240. Under my old setup, the Virtual Server (240) was in the DMZ, and a handful of other services used Port Forwarding to forward to the Host Server (253), for some Docker apps.
After setting up the Orbi system, enabling the DMZ, and enabling Port Forwarding, the DMZ appears to be working (My websites are visible), but the Port Forwarding to 253 does not seem to be working.
In theory, connecting to: truenas.aiskon.net:1998 (or 73.196.29.145 -Port 1998) should return a response from the application it's forwarding to. Instead, it's not responding, as if the port is closed / blocked.
No settings or IP addresses on the servers have changed. Would there be something beyond basic Port Forwarding, or a combo of DMZ & Port Forwarding, that would prevent this from working?
Finally figured this out - it was a DNS issue, specifically related to IPv4 & IPv6.
When I installed the new router, I rebooted my cable modem as a part of the process. When this happened, my home IP changed - for both v4 and v6. I caught the v4 change, and updated my Public DNS records, so it worked from the outside world for any device using IPv4, but not v6. Once I realized what happened, I updated my DNS records for v6 as well, and everything is working again.
It wasn't an issue with the router itself, so much as an issue that came up while installing it with other systems
9 Replies
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
There a router at the ISP Modem/ONT by chance?
Had this worked prior to installing the Orbi system?
Try disabling the following and see:
Armor, Smart Parental Controls or Circle, IPv6 and uPnP.Everything was working properly earlier today, before installing the Orbi system, and has been for over a year.
Modem is a Netgear CM1000v2, it has not changed in the past year.
I just disabled IPv6, I'll check into disabling Armor.
What system was being used prior to installing the Orbi syatem that was working?
Might try FW update as well at some point.
The DDNS process indeed resolves to the correct IP address.
GJSchaller wrote:
the DMZ appears to be working (My websites are visible), but the Port Forwarding to 253 does not seem to be working.
The virtual server (IP 10.0.0.240 which is the same as the DMZ IP value) is working. i.e. the TrueNAS web server appears, asking for login credentials.
There should be an option to log when port forwarding is activated (on the Advanced Tab, Administration Menu, Logs. Does anything appear there?
Is it possible to capture the network connection for the host computer, IP 10.0.0.253? (Wireshark or similar) Definitely sure that the host computer still has IP 10.0.0.253 on the new network?
p.s. FURRYe38 is correct that Netgear released newer firmware for the RBR850:
Click on Previous Versions
https://www.netgear.com/support/product/rbr850/#download
I doubt very much that the firmware release has much to do with this specific situation. But, when customers contact netgear support, one of their first questions is likely to be, "is the firmware current?" Before rushing to update, please be aware that there are a number of very long discussions on the forum about the newer version 7 firmware for the 850 product. A number of users have tried v7.2.7.15 and deliberately "gone back" to a previous version.
OK, so the latest version available from the UI is not the latest version available online - that's a step in the right direction.
Let me get that upgraded, and work from there.
