I have a Netgear R6300 router connected to the superhub 3 in modem mode. Everything works fine except that I can't reboot the netgear without having to manually force flash the firmware to get it to boot (it is faulty, had it a few years).
I decided a new router was the way to go and I bought the Synology RT2600ac (I have had a Synology NAS for years and love the company hardware/support).
However, I cannot for the life of me get the Synology router to get an IP/Connection from the superhub. I have set the primary interface connection type to Auto. Set as default gateway to Enabled. Nothing, nada, The internet page in the router simply says 'disconnected'. It is connected on the syonlogy wan-> port 4 on the SH3 (which is what I use for the Netgear). The lights are flashing on the RJ45 ports, both green.
I have rebooted, reset, tried AP mode (then basically couldn't get back into the router), reset again.
Has anyone had/got a Synology router and use it successfully with Virgin and what settings do I need to select to get it to see a connection?
Log into the Synology and factory reset it. Check that its DHCP server is enabled. Power it off.
Log into your hub and put it into modem mode. Reboot it and after a few minutes its base LED should turn magenta. With the Synology's blue WAN port connected to any of the hub's LAN ports with a suitable Ethernet cable (cat 5e or better such as cat 6), power on the Synology. You should now have internet access.
Sorry, already done that, it does not work. The synology does not get any IP from the hub. The hub is and always has been in modem mode (as I previously stated, I use it no problem with my Netgear R6300 router).
Did you try it the other way round? My experience is:
1. Hub 3 powered off; router powered off. Hub & router connected by Ethernet. 2. Router powered on and allowed to settle. 3. Hub 3 powered on and it should find the router, bind with it and supply the WAN IP to the router.
The Hub 3 acts as a DHCP server to the router via its 192.168.100.x subnet.
I've been connecting routers to Telewest and Virgin Media modems for over 15 years and have always powered on the modem before the router without a problem. Once the modem is initialised, the router can get its WAN IP address which is stored by the modem. Doing it this way also avoids a problem which is sometimes reported of a router which makes an attempt to get the IP address and, if it fails, makes no further attempt. Power cycling this way is also recommended by Netgear.
I don't want to be too prescriptive on how to do power cycling as it's not as if I do it several times each day, but I know what works for me.
My understanding is that during the initialisation sequence the modem sends a DHCP request to the CMTS and receives an IP address. When the modem binds to the router, the IP address can be passed to the router.
Incidentally, the CMTS is not located at the headend.