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Forum Discussion
mark0077
Mar 30, 2024Tutor
RBR750 Not Reconnecting To Internet
This week I was away on holidays and was hoping I could rely on my HomeAssistant based security system with motion sensors / cameras etc. Many of these rely on WiFi / Internet. However two days b...
FURRYe38
Apr 01, 2024Guru - Experienced User
mark0077 wrote:
Regarding connected devices, at any point only about half of the WiFi bulbs would be connected, the rest would be physically switched off. While away on holidays only about half, 30 would have been on. A few other wireless devices would also have been connected, but doing nothing like washing machine, dryer and dishwasher, as well as two TVs. For wired devices a Sky TV box would have been connected but again asleep. The only device that I believe might be doing something more meaningful would be the HomeAssistant PC that is wired into to the LAN. Its an Unraid server with a HomeAssistant VM on top.
So there would be no power running to these buibs for the ones that are physically switched OFF? Or are they on some kind of schedule to be switched off using there software program?
Two RBS are connected to the RBR. Its a 2200 square foot house. The router is in the garage about 60 feet from the house, wired directly into the house LAN. The two RBS are within the house, spread as far as possible apart, approx 45 feet apart.
Are these Two RBS wireless or ethernet wire connected to the RBR?
The 2.4Ghz is on channel 11 and 5ghz is on channel 36. There are two neighboring houses but quite far, about 60 meters away each. I can sometimes pick up their WiFi devices using a WiFi analyzer but at this very moment I can't. We consistently get great WiFi speeds of almost 1Gig, maxing out our Fibre connection.
Something to try, set manual channel 1 and 40 on the RBR.
Regarding performing any tests like disabling some bulbs, as it might take weeks/months to see if it has a result, it might not be practical. I think instead if there was a way to on an ongoing basis see if the running LAN/WiFi devices are doing something that could possibly / randomly stress the RBR/RBS out to the point that it requires a reboot, I can definitely monitor that. Is it simply cpu usage / memory usage that would help me know over time if its getting worse?I did a factory reset of RBR and both RBS when I had the last firmware update as the network actually completely went down at the time.
Screen capture of one RBR and one RBS attached. The second RBS debug.htm page reports 401 even though the same user/password works for the RBR and the other RBS. Is 37% high for the RBR, given at the minute there's almost nothing happening in the house, no downloads, just me lightly browsing the internet.
RBR: https://ibb.co/HpB51FJ
RBS1: https://ibb.co/sVcqtvPOk so the one RBS looks ok, however RBR CPU usage is moderately high and wondering if this maybe creeping upwards and getting to a point if it gets too high, caused the problem you saw before you returned home. CPU should not be this high.
Need to gain access to the 2nd RBS and capture debug page info on it. Try a power OFF of the RBS for 1 minute then back ON. Wait for it to complete syncing to the RBR and try the debug page again.
How many devices does each RBS show being connected to them and what does the RBR show for devices connected to it?
Is IPv6, Armor, Access Controls, Smart Parental controls or Traffic Meter enabled on the RBR?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6A STP is recommended.
mark0077
Apr 01, 2024Tutor
FURRYe38 wrote:
mark0077 wrote:Regarding connected devices, at any point only about half of the WiFi bulbs would be connected, the rest would be physically switched off. While away on holidays only about half, 30 would have been on. A few other wireless devices would also have been connected, but doing nothing like washing machine, dryer and dishwasher, as well as two TVs. For wired devices a Sky TV box would have been connected but again asleep. The only device that I believe might be doing something more meaningful would be the HomeAssistant PC that is wired into to the LAN. Its an Unraid server with a HomeAssistant VM on top.
So there would be no power running to these buibs for the ones that are physically switched OFF? Or are they on some kind of schedule to be switched off using there software program?
Two RBS are connected to the RBR. Its a 2200 square foot house. The router is in the garage about 60 feet from the house, wired directly into the house LAN. The two RBS are within the house, spread as far as possible apart, approx 45 feet apart.
Are these Two RBS wireless or ethernet wire connected to the RBR?
The 2.4Ghz is on channel 11 and 5ghz is on channel 36. There are two neighboring houses but quite far, about 60 meters away each. I can sometimes pick up their WiFi devices using a WiFi analyzer but at this very moment I can't. We consistently get great WiFi speeds of almost 1Gig, maxing out our Fibre connection.
Something to try, set manual channel 1 and 40 on the RBR.
Regarding performing any tests like disabling some bulbs, as it might take weeks/months to see if it has a result, it might not be practical. I think instead if there was a way to on an ongoing basis see if the running LAN/WiFi devices are doing something that could possibly / randomly stress the RBR/RBS out to the point that it requires a reboot, I can definitely monitor that. Is it simply cpu usage / memory usage that would help me know over time if its getting worse?I did a factory reset of RBR and both RBS when I had the last firmware update as the network actually completely went down at the time.
Screen capture of one RBR and one RBS attached. The second RBS debug.htm page reports 401 even though the same user/password works for the RBR and the other RBS. Is 37% high for the RBR, given at the minute there's almost nothing happening in the house, no downloads, just me lightly browsing the internet.
RBR: https://ibb.co/HpB51FJ
RBS1: https://ibb.co/sVcqtvPOk so the one RBS looks ok, however RBR CPU usage is moderately high and wondering if this maybe creeping upwards and getting to a point if it gets too high, caused the problem you saw before you returned home. CPU should not be this high.
Need to gain access to the 2nd RBS and capture debug page info on it. Try a power OFF of the RBS for 1 minute then back ON. Wait for it to complete syncing to the RBR and try the debug page again.
How many devices does each RBS show being connected to them and what does the RBR show for devices connected to it?
Is IPv6, Armor, Access Controls, Smart Parental controls or Traffic Meter enabled on the RBR?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6A STP is recommended.
I managed to get into the second RBS, had to reset it using a pin on the back though. Screenshot link below.
Using the Orbi app, I can see the RBR having 9 WiFi devices connected to it and 7 showing as connected via LAN. RBS1 shows 30 WiFi devices connected to it. RBS2 shows no devices connected to it, but perhaps after a while itll all balance out as RBS2 is just after being rebooted.
For IPv6 under Advanced -> IPv6 it shows "Internet Connection Type" "Disabled"
I have no parental controls, armor or traffic meter enabled.
For the ISP modem, I have none attached. The Orbi is directly connected with the ISP modem detached. The ONT seems to be a small white Huawei brand but no discernible numbers can be seen on it itself.
We have Cat 6A cable used throughout the house and connecting out to the garage / RBR.
RBS2: https://ibb.co/8M2KGY6
- FURRYe38Apr 01, 2024Guru - Experienced User
Are these Two RBS wireless or ethernet wire connected to the RBR?
What is the brand and model# of the ONT?
Yes the one RBS that remained online will have what the 2nd RBS doesn't since it was reset. - mark0077Apr 01, 2024TutorAll of the three RBR plus the two RBS are all wired together.
I can't see any numbers on the ONT except for the Huawei brand. I might try to take the cover off it to see if it has some numbers. - FURRYe38Apr 01, 2024Guru - Experienced User
Ok,
What CAT# LAN cable is used between the RBR and RBS? CAT6 is recommended.
Is there any LAN patch panels, wall jacks or LAN switches in between the RBR and the RBS?
Does the front LED on the RBR turn PINK when the RBR doesn't seem to connect to the Internet?
Let us know if you can find the model # of the ONT.
- mark0077Apr 01, 2024TutorI took the ONT off the mount and can see on the back it's marked as a Huawei OptiXstar HG8010Hv6
- FURRYe38Apr 01, 2024Guru - Experienced User
Ok, no router or anything at the ONT. This is good.
Is there any LAN patch panels, wall jacks or LAN switches in between the RBR and the RBS?
Does the front LED on the RBR turn PINK when the RBR doesn't seem to connect to the Internet?
- mark0077Apr 01, 2024TutorYes I have Cat 6a everywhere throughout the house. I have three Netgear switches through the house. One is used to take the connection coming from the garage where the RBR is and it then fans out to the other Lan devices such as the two RBS. If the models of those Netgear switches is important I can provide details.
- FURRYe38Apr 01, 2024Guru - Experienced User
Yes please.
How many switches are there in between the RBR and RBS? - mark0077Apr 01, 2024TutorThe three switches I have are 2 x GS108Ev3 and 1 GS308E.
The only one between the three RBR/RBS devices is 1 of the GS108Ev3. The other two switches are in other rooms to help branch out to connect some devices like media devices where otherwise I have only one Lan connection at those points. - FURRYe38Apr 01, 2024Guru - Experienced User
Does the front LED on the RBR turn PINK when the RBR doesn't seem to connect to the Internet?
Ok so the GS108Ev3 is a smart or semi managed switch. These have been known to cause problems on Orbi systems with RBS ethernet connected. A GS108 or GS308 with out any letter characters after the model # are non managed switches and would be recommended in between the RBR and ethernet connected RBS. One thing you can try and check on the 108Ev3 is log into it's web page and disable any IGMP and Green Ethernet protocols.
Something to try as well, find a GS105/108 or GS105/308 non managed switch to swap in place of the 108Ev3 switch.
I've been testing a 850 series here with ethernet connected RBS and have found some CPU creep in upwards of 30% with two RBS connected. However my testing was wiped out this last Saturday with a home power bump that caused the ISP modem and RBR and RBS to power cycle and reboot. I was waiting for the RBR CPU usage creep to get high enough to see what would happen. GS108 switches are in use here. Not ruling this out as a cause of your RBR not connecting, however could be on contribution. I found that with RBS wirelessly connected, didn't cause CPU creep or having 1 RBS ethernet connected didn't see CPU creep upwards, adding the 2nd one did cause the RBR CPU creep upwards after the Hop Count on both RBS went from value 1 to Blank. Unknown why this happened and the results causing this creep.
Something to try, turn OFF one of the RBS and leave the other connected via ethernet, after checking the two items on the 108Ev3 options.
If the RBR is going pink when you notice no internet, might also be a problem with the RBR and the ONT failing to continue to work together and possible something is happening on the ONT side that stops and the RBR can't regain the connection. Something to check the front LED and check the Show Stats on the RBR for the WAN section. If you see the uptime reset here and the uptime on the RBRs debug page doesn't show same change, then the WAN connection stopped working here or was reset. I might ask the ISP to check the ONT logs and there ONT service logs from you location the next time this happens to see if anything appears to them when this happens again.
Need to find out why the RBR CPU usage is so high. Should be down the low tens or teens.
- mark0077Apr 01, 2024Tutor
FURRYe38 wrote:Does the front LED on the RBR turn PINK when the RBR doesn't seem to connect to the Internet?
Ok so the GS108Ev3 is a smart or semi managed switch. These have been known to cause problems on Orbi systems with RBS ethernet connected. A GS108 or GS308 with out any letter characters after the model # are non managed switches and would be recommended in between the RBR and ethernet connected RBS. One thing you can try and check on the 108Ev3 is log into it's web page and disable any IGMP and Green Ethernet protocols.
Something to try as well, find a GS105/108 or GS105/308 non managed switch to swap in place of the 108Ev3 switch.
I've been testing a 850 series here with ethernet connected RBS and have found some CPU creep in upwards of 30% with two RBS connected. However my testing was wiped out this last Saturday with a home power bump that caused the ISP modem and RBR and RBS to power cycle and reboot. I was waiting for the RBR CPU usage creep to get high enough to see what would happen. GS108 switches are in use here. Not ruling this out as a cause of your RBR not connecting, however could be on contribution. I found that with RBS wirelessly connected, didn't cause CPU creep or having 1 RBS ethernet connected didn't see CPU creep upwards, adding the 2nd one did cause the RBR CPU creep upwards after the Hop Count on both RBS went from value 1 to Blank. Unknown why this happened and the results causing this creep.
Something to try, turn OFF one of the RBS and leave the other connected via ethernet, after checking the two items on the 108Ev3 options.
If the RBR is going pink when you notice no internet, might also be a problem with the RBR and the ONT failing to continue to work together and possible something is happening on the ONT side that stops and the RBR can't regain the connection. Something to check the front LED and check the Show Stats on the RBR for the WAN section. If you see the uptime reset here and the uptime on the RBRs debug page doesn't show same change, then the WAN connection stopped working here or was reset. I might ask the ISP to check the ONT logs and there ONT service logs from you location the next time this happens to see if anything appears to them when this happens again.
Need to find out why the RBR CPU usage is so high. Should be down the low tens or teens.
Thanks for this info, its great. I'll first try to change those settings on the managed switches I have to see if it helps. Do you know if anyone at Netgear is actively looking to fix those issues if they are known ones / possible to reproduce? That'd obviously be the ideal solution and would mean I could rule those in/out if a firmware fix was able to resolve at least those known ones.
For me when I came home, both the RBR and RBS's were a solid purple type color. My worry is, if they were having some issue with connectivity to the ONT, even if it was the ONT fault, why wasn't there some internal restart of whatever module/service (I'm not sure how it works) inside the firmware that would have meant the hard reboot from my side was needed.
I guess without being able to see some permanent log that survives a reboot I'll have to try to get into the router logs before rebooting it next time, possibly via the LAN if eg my PC can get to its IP over the LAN.
Yeah that will be interesting to see why my RBR is so high in terms of cpu usage. Even as we speak its still at 37.2% and almost nothing (that I'm aware of) is happening in the house (I guess something is causing it that I'm not aware of so I'll start shutting things off/on to see can I figure out whats causing it to be so high.
Does any other debug type of page show any sort of breakdown of that percentage to give any hints as to whats causing it? Does the debug page show a very up to date view of the cpu %. eg if I shut down a device, would it in theory affect the debug.html cpu usage figure fairly quickly or is there any lag / delay.
- mark0077Apr 01, 2024Tutor
One thing to note, I remember when searching a few months back to see if I could eliminate the use of my ISP provided modem, as to whether the Orbi RBR could support the VLAN tagging that my ISP uses. It seems the Google WiFi doesn't support it but the Orbi does. But I vaguely remember reading some threads that using this feature of the Orbi router does in some way slow it down.
Is this in any way related to its high cpu usage, untagging/tagging this vlan id that my ISP uses as traffic comes and goes? Not that it causes any issues for me on a daily basis of course, and I guess also shouldn't cause the complete outage that I had, but just might explain the high cpu usage?
So within the routers settings under "Advanced" -> "Enable VLAN / Bridge Setup" I have set "By VLAN tag group" with VLAN ID of 10 set so that I can connect to my ISP directly. Does this also show high CPU for you when used?
- FURRYe38Apr 01, 2024Guru - Experienced User
It's possible. My ISP doesn't use VLAN tagging as it's a Cable ISP. So it's all DCHP here.
Only way to check that would be to put the ISP router online, use the ISP router to configure any VLAN tagging, then use the DMZ on the ISP router for the RBR in router mode and then monitor CPU usage.
Possible that this VLAN tagging and the ISP service at the ONT with the RBR is not working right and causing higher CPU usage and eventually stops if the CPU usage gets too high.
- mark0077Apr 03, 2024TutorYeah I reconnected my ISP router and set the RBR as DMZ. Now the debug page shows 7%. Wow 30% is a lot of cpu to spend removing vlan 10 from my ISP even when 'idle'. Should it be considered a bug that it's using so much cpu. It'd be great if there was a fix for that. I'm more than happy to provide logs/captures to help with any possible fix/improvement.
I'm still not sure of course if it's related to the original issue I hit but interesting. - mark0077Apr 03, 2024TutorWell this is annoying it's back to 37 percent. I could have been hit with chrome auto complete and went to the wrong debug page earlier. So even connected to the ISP set in DMZ mode to the RBR IP, sitting next to it with a Cat 6a it's using 37 percent. Of course also happy to help debug it in any way.
- FURRYe38Apr 03, 2024Guru - Experienced User
Ok so something else is causing high CPU usage.
Is Armor, Access Controls and Traffic Meter enabled?
What devices are all connected currently to the system?Still using the LAN switches in between the RBR and RBS?
I might turn OFF one RBS and maybe let one RBS wirelessly connect to the RBR if it will and see if this changes the CPU usage.
I might turn OFF any and all devices and go with a limited few devices and see if the CPU usage goes down or maintains. Might need a reboot to check this again. Not sure if the CPU usage will change or not being in this kind of state.
Possible something on the WLAN or LAN side or switches maybe a possible cause as well. If you can get the RBR and RBS down to limited use and limited devices connected, then if the CPU usage changes downwards and get to a low value, then graduate adding back in devices while monitoring the CPU usage for changes in direction. Might find a culprit.
And you said you factory reset the system at one point right?
- mark0077Apr 03, 2024Tutor
Yeah, armor, access controls and traffic meter are disabled. Sure I'll try to actually disconnect absolutely everything, even the RBS's and as you say bring them in one by one and report back.
- FURRYe38Apr 03, 2024Guru - Experienced User
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