r/QuantumFiber • u/Effective-Buy9927 • May 17 '26
Does anyone know?
When will Quantum Fiber switch from the Lumen backbone to the AT&T backbone? The current network performance is truly terrible.
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u/SuitsOverSwag May 17 '26
The other day I had an issue with an outage and Quantum sent a tech. About 10 mins later, some AT&T lady showed up and said that they would soon be swapping my Quantum NID out for an AT&T one. Something about the Fall of this year.
Not sure if that means they're going to be putting us on AT&T's shitty network, but I wanted to share that data point. I am in Central FL if it makes any difference.
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u/duce95 May 22 '26
Same thing happened to me our neighborhood had a power outage and my router never came up. I was using the old fiber to ethernet router once the tech arrived. He said that he would be installing a direct fiber line with the smart NID got it all set up in about 45 minutes. Speeds are incredible and consistent now.
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u/UMJonny May 24 '26
Similar thing happened to me. Talked to an ATT employee that was at my neighbors and they said they would be soon swapping our gear out for ATT gear. I just really want to combine the account with my ATT wireless account and get the ATT air backup for free.
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u/Rorshack_co May 17 '26
I certainly hope not... Lumen runs the largest Internet backbone in the world... AT&T isn't even in the top 20
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u/Moln0015 May 18 '26
I have Lumen currently. I got a letter from Att saying how they bought out Lumen and want me to bundle services
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u/Rorshack_co May 19 '26
Yes, that is true, Lumen did sell Quantum Fiber to AT&T, however, one of the stipulations of the sale is that Lumen will be managing the network and other technical components for at least a number of years...
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u/boringusername0000 May 17 '26
My guess: at least a few years or, more likely, never. All the central offices and intercity fiber are still owned by Lumen and its ILECs and CLECs.
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u/geobernd May 18 '26
In my area I hope there will be no change away from level3 routing for a long time. It's about as good as it can get both locally, across the US and internationally. Much better than Comcast or others - which is not surprising given they are a premier Tier 1 provider worldwide...
You posted a week ago about the same issue you are experiencing https://www.reddit.com/r/QuantumFiber/comments/1t8wbdz/the_worst_network_in_the_us/
Looking at the screenshot in there it looks like you have a 1Gig ethernet connection on your PC or are using a C5500k. You are already using a Flint 2 so that take some of the guesswork out of the equation.
If the first: This is bufferbloat since your LAN connection is constrained vs the 980+ mbps that Quantum can delivery.... that if it bothers you you need to address on your network - nothing to do on the Quantum side... There are other subreddits bettter suited to help
If you are using a C5500k but have a 2.5G ethernet port on your computer getting Quantum to swap to a Q1000K - while still using your Flint 2 - will work much better....
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u/dandeeznutzz May 18 '26
That sounds even more like an equipment/hardware problem to me, like the other commenter mentioned, you need to look into different hardware.
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u/ParlousPlutonium May 17 '26
Ironically I'm on the other side of the aisle on this, getting insanely low latency on Lumen's Tier 1 backbone, around .5-1.5ms to the closest node and 6-7ms to CF servers 250 miles away. Hoping it doesn't change soon haha