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Forum Discussion
old586whizz
Apr 30, 2022Aspirant
RBR10, slow internet using VLAN
Heya guys,
I've been fairly pleased with my RBR10 Orbi (with 2 attached satellites to extend the range to cover the whole house).
I have had the opportunity to replace my internet to gain double the speed for half the price (fibre to the house) - so how could I say no!?
(Firmware: V2.7.3.22)
The ISP obviously gave me a router - which uses up extra power and does nothing for me - so I looked at setting up my Orbi router to replace it.. Doing so, I found my new ISP uses a VLAN configuration on the router.
So I do a speed test on both devices before doing anything:
Old ISP (RBR10) = ~350mbps download, 40mbps upload, both cabled and over 5G wifi...
New ISP (new router) = 370mbps download, 100mbps upload wifi (~800mbps down, 150mbps up cabled)
RBR10 through ethernet to new router = ~500mbps download, 110mbps upload wifi (~800mbps down, 150mbps up cabled).
Laptop using VLAN config plugged directly into fibre black box = ~800mbps download, 150mbps upload.
The RBR10 also has the "speedtest" internally, the RBR10 speeds reflect the cabled speeds (so I'm not losing speed anywhere through RBR10 yet).
HOWEVER, when I switch the RBR10 to be plugged into the ISP ethernet fibre box and set up the VLAN (vlan tag group is the only one that worked - the bridge group didn't work) things go funny.
First - Orbi seems to react badly to no internet access.. The admin pages take their time to return the settings, things like VLAN page and the wireless page seem to hang for about 6 minutes before returning the correct settings to the screen... Why is Orbi so reliant on an active internet connection to let me see or change the settings for Wifi!? This is a bit silly.
Anyway, skipping past that bit (and the fact it seems to reboot the router to set a VLAN setting to the internet port, when it shouldn't need to), I get the VLAN setup and it works (after taking a minute or two longer than I would expect).
HERE is when things get 'interesting' speed wise:
110mbps download, 30mbps upload (wifi AND cabled) over the new fibre connection.
"speedtest" button in the Orbi router settings = ~800mbps download, ~150mbps upload (what I would expect).
This surprised me..
Why is my Orbi router taking such a big hit, both wireless and wired, to simply put VLAN tagging on the TCP packets leaving the internet ethernet port? As it's Linux under the hood, it should just be a vlan bridge device handled by the kernel, and not much extra processing needed (standard 802.11q + p).
Does anyone have any advice on this issue, as I don't want to power another router simply to VLAN-tag the internet traffic due to the fact the orbi router cuts the speed to 12% of the speed I should be getting (wasting a plug socket, the electricity, space, cables, etc).
Any help is much appreciated.
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Old586whizz
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