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Solved
ORBI - Port 443 Closed even with Port Forwarding?
I have an RBR50 connected to an AT&T modem/router with IP passthrough. Synology web server is connected to the Orbi. Port Forwarding is enabled for 80 and 443 between Orbi and Synology. Howev...
Solution discovered:
I have AT&T as a service provider for Fiber; formerly I also had their U-Verse service with wireless receivers/DVR's.
Come to find out AT&T does block Port 443 for any inbound traffic. They specifically use this port for their wireless receivers/DVR's. Despite cancelling U-Verse last year, the IP/MacID of these services were still listed/cached in the AT&T modem/router which resulted in a permanent closure on Port 443.
SOLUTION FOR USERS WITH A SIMILAR ISSUE (assuming you do not have wireless receivers and just ATT fiber):
1. Login to ATT's modem router admin portal at 192.168.1.254
2. Click on Device>Device List>Clear and Rescan for Devices.
3. Perform a factory reset of the AT&T BGW210 modem/router, add port forwarding rules for allowed ports, then re-configure it for IP Passthrough to the Orbi again.
4. Apply or disable any additional settings needed for a secure network hosted by ATT or the Orbi.
This is probably a good solution for anyone with the following or similar equipment:
- At&t Arris bgw210-700
- Orbi
- Home NAS
> Synology web server is connected to the Orbi.
I know nothing about your "Synology web server". Does it support
HTTPS?
> Port Forwarding is enabled for 80 and 443 between Orbi and Synology.
> [...]
If you say so, but, with my weak psychic powers, I can't see your
actual port-forwarding rule(s). Or any IP address reservations. Or
what you're doing.
> [...] port 443 says closed [...]
But not port 80?
> [...] Synology also indicates its showing closed.
"it's"? "Synology" the corporation, or some (unspecified) "Synology"
device, or what, exactly, "indicates" what, exactly, how, exactly?
It might be helpful if you described actual events in the real world,
rather than providing your interpretation of what you believe a bunch of
invisible stuff really means.
For the usual problems with port forwarding, see:
https://community.netgear.com/t5/x/x/m-p/1859106
"3" sounds potentially applicable.
Why are you doing this? Whatever this thing really is, do you want
to expose it, on standard ports, to the whole Internet?
I agree it would be helpful to know the specific model of Synology device (there are SO many) and the intended purpose.
When I began searching for "access synology server remotely", the first thing that popped up was something very similar to Orbi Anywhere Access: https://www.howtogeek.com/346744/how-to-remotely-access-your-synology-nas-using-quickconnect/
This apparently does not require opening any ports through the router.
This reference mentions forwarding port 5006:
From my brief experiments with port forwarding, the Orbi appears to do exactly what it is told. The two obstacles that I encountered were:
- When the upstream device is also a router and blocks the port. It is possible to surmount this issue by creating port forwarding rules on both routers, but complicated.
- When the receiving device does not accept connections. Windows Firewall, for example, has separate rules for 'local' and 'remote' connections. Does Synology have a similar firewall configuration?