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CBR750 Wireless devices connect, but no internet
Thanks for looking at this. It has been bewildering to say the least. I have a CBR750 + 1 satellite. Until today, everything was fine (using Coax with Spectrum) no issues with a single device, b...
IDDQD123 wrote:
I was referencing that there isn't a manual for setting this Modem Router as Router only (the only option in advanced was whether to use it as a Router - yes by default, and I learned that by disabling it, it acts as modem only and to be accessed again has to be factory reset). I understand now.
Power and Internet LED's were solid, downstream was blinking white (at least when I looked at it), upstream was off. Probably kept trying to check if there's any data to move on Coax, but there wasn't one plugged in.
Ring LED was amber. The subnet IP was something like 192.168.1.19, gateway showed the subnet IP for the AT&T router. I can't recall the subnet mask.
Seems like it was working as a switch with ethernet connetions. AT&T router saw all WiFi devices (even ones that didn't get internet data) as ethernet connections on its end, but they showed up properly in Orbi's device list as whether wireless or wired.
The BGW20 seeing all connections as wired makes total sense. The BGW20 has no idea that a WiFi network exists and sees all devices appearing on one of the BGW20 ethernet ports. ergo: all 'wired'.
Perhaps some of the devices remember too much. Orbi typically uses a DHCP lease of one day (86.400 seconds). If devices remained powered on during the transition, perhaps they remember the IP address that they got from the Orbi and have not asked to renew the lease with the BGW20. Do the IP addressed in the BGW tables match the IP's in devices that are no longer working? For the devices that are not working correctly, have those devices been power cycled?
It's an interesting thought. I didn't look at IP addresses too closely between the routers, but a couple of things throw a wrench into that theory.
1. There were several in-kind devices some of which carried over from Orbi being modem and router to just router(-ish thing), so I'd expect them to have the same rules for renewing IP (2 LG TV's 1 year model apart and 3 chromecast devices, out of which one didn't get data, as well as Nest Hello and Nest Indoor cameras again getting 50/50 success rate).
2. I did power cycle the devices that were not getting data as well as did a couple of factory resets on both Orbi and BWG320 after the topography change, so I'd guess that each time they came online and got set up, they would assign new subnet masks all around.
3. I did specifically observe that subnet assigned to Orbi changed when I changed the ethernet ports that it used to connect to BWG320 (something like from .119 to .132) because BWG can show a list of devices it has allocated IPs to on the network and when you disconnect, it remembers it, but shows it turned off until you purge the devices list and force scan (or presumably after a time period). So, it would show Orbi as offline on the old port and online on the new one, then I'd force to rescan it.
One theory I came up with is that when Orbi is not connected as a modem, but just gets data from ethernet, it starts behaving like a switch (with WiFi). It could make sense since it does have 4 ethernet ports that it could manage, so there's some number of channels it can act as a switch for, but then maybe it's not meant to be a powerful switch so it's very limited to what it can handle as far as distributing packets?
I don't know, I'm grasping at straws here. I think that I'd be less annoyed if it just didn't work at all đ
You couse use the CBR in a faux AP mode if thats what your looking for to use with the ATT router...
