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Forum Discussion
Port forwarding problems, Orbi RBR50
I am unable to open ports on my network. I'm trying to connect some security cameras and a minecraft server. Can someone please help?
My setup is as follows:
Orbi RBR50 wifi router, Firmware: V2.5.1.16
Arris Surfboard SB8200 cable modem (Docsis 3.1 modem only, not router)
On the Orbi setup page, I have done the following:
- Updated the firmware to the latest version, v2.5.1.16 (6/20/2020)
- Turned off UPnP
- Verified Router/AP mode is set to router
- The security camera and minecraft server computer have their IP addresses reserved
- Set the port fowarding services (see attached picture)
When testing to see if ports are open using https://canyouseeme.org/, all ports are closed.
The security cameras were working fine with my old comcast router, so I know that they work. (these cameras do not connect to a computer, so they are not bound to a windows firewall)
I was trying to get a Minecraft server setup on one computer, but am still running into the port forwarding issue.
On that Windows 10 computer I have done the following:
- Set firewall to allow 25565 port (UDP/TCP)
- then disabled Windows Defender Firewall
- Set networking location to Private
- Disabled all antivirus Software
Again, Testing with https://canyouseeme.org/, all ports are closed.
Then I set up the DMZ server on the Orbi setup page to be the micraft server.
Again, Testing with https://canyouseeme.org/, all ports are closed.
Besides the port forwarind issue, my internet works great. I am out of ideas on this. Any help would be appreciated.
4 Replies
The post says "cameras", but three ports are forwarded to only one IP address. Does that mean you are testing one camera and will deal with the other cameras later?
The Minecraft server is "up and running", correct? And can be accessed from the local LAN?
In the Firewall rules, is the port open for both "Private" and "Public" connections?
zenjoe wrote:The security cameras were working fine with my old comcast router, so I know that they work. (these cameras do not connect to a computer, so they are not bound to a windows firewall)
It sounds like your Comcast modem is also a router. Is your Orbi in Router or Access Point mode? Since you're setting up port forwarding in the Orbi it looks to be in Router mode. Is your Comcast modem in Bridge mode? If not then you have Double NAT, where packets from the outside internet are routed once by your Comcast modem and then again by the Orbi. Double NAT is not ideal and can cause problems. It particularly make port forwarding difficult because it needs to be done twice (once for both router).
See other posts in this forum for options to resolve Double NAT. The easiest may be to put your Orbi in Access Point mode so it only serves your home's wireless network and things like port forwarding and UPnP are still left to your Comcast modem.
You can alternatively put your Comcast modem in bridge mode so your new Orbi does everything. Or also setup port forwarding on the Comcast modem to your Orbi's IP and then the port forwarding you have setup on the Orbi to your devices will work.
The Arris SB8200 is only a modem. No router here.
FURRYe38 wrote:The Arris SB8200 is only a modem. No router here.
Oops, missed that. Thanks.
Did you copy the IP address from your old Comcast router to your new Orbi port forwarding rules? They have new IP addresses assigned by your new Orbi so verify that the ones in your picture are still correct.
