Show threadMike McCaffrey May 22

I don't think this is our problem, but #LumenTech admitting that their network just can't cope with MAC addresses that start with a 4 or 6 is one of the most unhinged things I have ever heard.

https://docs.lumen.com/network-troubleshooting-tools/resolving-throughput-issues/

#Networking #LumenTechnologies #CenturyLink

Resolving throughput issues

Learn how to resolve throughput issues related to your MAC address. If your MAC address begins with a 4 or a 6, this could contribute to packet reordering over your Lumen service—which may cause slow speeds.

Show threadMike McCaffrey May 22
Downloaded #PingPlotter to monitor what is happening with my #ATT / #QuantumFiber / #CenturyLink fiber service, and wow, is #LumenTech (the part of CenturyLink that didn't go to AT&T) really losing 85-90% of packets between Portland and Seattle?
Mike McCaffrey May 20

After CenturyLink/QuantumFiber/AT&T replaced our fiber terminal, and I replaced our wi-fi router, things seem to have gotten a bit more stable.

However, we are still having these occasional slowdowns for around 30 seconds, where everything becomes choppy and latency jumps up.

I just captured one that lasted 36 seconds, so I know I am not imagining it. I just wish the fiber company had any idea what was going on.

#Portland #FiberInternet #CenturyLink #QuantumFiber

from:meMay 8
#mikrotik #centurylink #ipv6 #6rd gitea.moe/lamp/mikroti...

mikrotik-routeros-centurylink-...
mikrotik-routeros-centurylink-6rd

How to set up Centurylink (Quantum Fiber) 6rd on Mikrotik

gitea.moe
Large Format ProjectionistMar 25

#AT&T bought #Quantum

Quantum was #CenturyLink 's creation to dodge union contracts AND FCC tariffs.

Rather than build their own, the Death Star just bought one already doing it.

#Telecom the industry of civility and standards.

Mike McCaffrey Jan 28

Anyone who had #CenturyLink fiber should be careful when contacting #QuantumFiber tech support.

I've been having daily 30 second connection issues for over a year now, so I finally got fed up and contacted support. However, that caused them to migrate my account somehow, and now I have no internet at all, and it might not come back for 48 hours.

My wife is not exactly happy with me right now.

Mike McCaffreyDec 21

If fiber can deliver over 100Mbs to my house, how is it taking the modem over 10 minutes to connect to the Internet?

#CenturyLink

🇺🇦 haxadecimal 🚫👑Dec 15
Got my laptop plugged directly into the ONT, doing PPPoE on VLAN 201. It logs in and gets the right IP address, but the netmask is /32 instead of /28, and everything is still redirected to the #CenturyLink "give us money" page, even though it shows my balance as $0.
CenturyLink never did tell me exactly which century they were going to link me to.
They (Lumen) have a deal pending to sell their Quantum "consumer fiber" business to AT&T, but that won't close until some time next year.
@[email protected]Nov 6, 2025
I have yo say, when my internet was #CenturyLink I'd have one or two outages a year. They sold off their #internet to #BrightSpeed and it's been downhill since then. Constant little blip outages that I helped them solve by talking with their techs directly. But still constant major outages. #Lumos is coming to my area, might have to look at that in the future.
ResearchBuzz: FirehoseOct 30, 2025

The Register: Major telecom supplier compromised by unnamed nation-state attackers. “Nation-state snoops broke into Ribbon Communications – an outfit that provides software and networking gear to Verizon, CenturyLink, and the US Defense Department – last December, remained hidden for about nine months, and stole files belonging to three customers, according to the US telecommunications firm.”

https://rbfirehose.com/2025/10/30/the-register-major-telecom-supplier-compromised-by-unnamed-nation-state-attackers/

The Register: Major telecom supplier compromised by unnamed nation-state attackers | ResearchBuzz: Firehose

ResearchBuzz: Firehose | Individual posts from ResearchBuzz