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Forum Discussion
Orbi 850 running V7.2.8.5_5.1.21 dhcp issues
Hi I recently switched my Orbi 850 back to router mode from AP mode as I have a new ISP. What i've found within a day is that the dhcp function on the Orbi 850 (+1 satellite) running V7.2.8.5_5.1...
The DHCP service is being provided by your ISP router, all the Orbi is doing is forwarding those requests to that router.
This was the case when the Orbi was in AP mode connected to the previous ISP. When the ISP changed, the Orbi was placed in Router mode.
This was the case when the Orbi was in AP mode connected to the previous ISP. When the ISP changed, the Orbi was placed in Router mode.
Oops, read it backwards. The 850 can handle 80 connections in router mode, so it is not that.
I am wondering if David9 did a factory reset when switching to Router mode. That might help.
I did reset it. A few times.
I did reset it. A few times.
Just to be clear, the recommendation is a Factory Reset, which involves a complete reconfiguration. The consensus is that your expectation was correct. An 850 router should be able to support 80+ devices with no problem.
Another question: When Orbi routers are connected to an ISP device (modem, fiber ONT, etc.) the default behavior is to set the LAN IP subnet to 192.168.1.x unless the ISP device happens to be a router and has offered the Orbi router an IP address in that subnet, in which case the Orbi defaults to 10.0.0.x
What IP subnet was the previous ISP device using for local devices and which IP subnet has the Orbi 850 set up when in router mode with the new ISP?
It appears to allow the amount of devices to connect via wifi when NOT a DHCP server and it is the DHCP server function that is the issue when in router mode.
....and yes I did factory reset it. ...twice.
Regarding the connectivity etc. I have worked in telecomms and IT networking for over 38 years. I understand networks, routing, subnets and DHCP servers. There was no ISP router in the new connection when initally connected to the Orbi "WAN" port. To resolve the issue in the interim I've installed an old ISP router, which now acts as the DHCP for 192.168.1.0/24 and reverted the Orbi to AP mode. It appears to have stabilised for now, but you can never tell whether all devices are working. Unfortunately that old ISP router only allows up to 32 IP address reservations.
I should also state, that over the years I've had the orbi I do have to reboot it every few weeks to keep it "reliable".
