Forum Discussion

mercilesskiller's avatar
mercilesskiller
On our wavelength
2 years ago
Solved

Modem Mode on Hub 4 won't work - no DHCP/WAN connection (but connection fine in Router Mode)

Hi All I've had an issue with my Hub 4 come up overnight which I'm wondering if anyone has any ideas around.  I have a 500mb Virgin connection which works fine when the Hub 4 is in router mode. I...
  • Roger_Gooner's avatar
    Roger_Gooner
    2 years ago

    The correct procedure is to power on the hub first and then the router as doing it this way ensure that the hub's modem goes though its complicated initialisation with the CMTS and gets the data it needs from the DHCP server for the WAN IP address and routing table. When you then power on the router all the work has been done by the modem and the router will get its WAN IP address as the modem is acting as a bridge. If you power on the router before the hub there is the risk that the router will fail to get its IP address and/or begin to prematurely assign IP addresses to connected devices, which is why a power recycle of the router will be needed to get it to work.

mercilesskiller's avatar
mercilesskiller
On our wavelength
2 years ago

Darn it. I still have a problem. 

whilst identifying the restart order to fix the issue, it happened again overnight. 

I restarted the router itself and it didn’t fix it. Link light showed as connected to the hub but no internet. So turned both of them off. Turned hub on. Waited. Turned router on and it worked. 

so 2 nights running my hub in modem mode lost its internet connection until a restart. If this is going to be every night that may get frustrating! I could always get plug timers that auto turn off and on at certain times 5 mins apart but that shouldn’t happen ha!