IPv6 Excuse Bingo:
And then random stuff just doesn't work. Various websites hang, various widgets just don't load, etc. Then I turn it off and everything gets better again.
I'be been too lazy to diagnose why exactly it doesn't work, I just figure it's easier to run with it off. At some point a website I really want to access will require IPv6.
Hopefully by then whatever is broken will be fixed.
Before I switched ISPs a few weeks ago to one without IPv6, I was with an ISP with IPv6 (dual-stack) for about five years and had zero problems.
In fact it worked 'too well' initially: when I was still IPv4-only I had put a bunch of Facebook domains in my iMac's /etc/hosts file pointing to 127.0.0.1 so that all those little icons would stop loading. At some point I noticed they were back.
After some head scratching over a day or so I realized that Facebook was IPv6-enabled, and so the icons were loading because AAAA records were working. Adding ::1 for Facebook in hosts fixed things.
Still unsure of the benefit of dual stack, but there are numerous costs.
edit: I've been running dual-stack with Windows, macOS, iOS & Linux for at least a decade now - I think it's closer to 20 years than 10! I've never seen it be like the parent post for my personal use, but I have seen it broken like that in places I've worked with incorrectly configured routers/firewalls.
edit 2: this isn't a good idea for v4 either, but it's less broken than v6!
I’m sure I do. But that’s sort of the point. I only use standard commercial hardware with the default config.
If that doesn’t work out of the box, what chance does someone who doesn't have my decades of networking experience have in fixing it?
Granted I’m probably more sensitive than most because I know what network issues look like. Most people probably just think some things are slow sometimes.
My ultimate point though is that this is probably a barrier to adoption.
I'm in that 40%. I use IPv6 on my phone whenever it's not in my house.
1. people who just use the router their ISP provides
2. people who go and buy off the shelf consumer routers/wifi - eg Netgear, Linksys, TP-Link
3. the kinds of people who run home labs and use small/medium business targeted routers/wifi like pfSense, VyOS, Unifi, Mikrotik, or even things like Juniper SRXes etc.
The first group will get a 'blessed' and hopefully well tested IPv6 configuration when their ISP rolls it out, and I'd expect minimal problems there. Certainly haven't noticed anything big in the UK with some of our biggest ISPs rolling out v6.
The third group will inevitably have teething troubles, but v6 works okay on those kinds of platforms once you know how to configure it, from my experience.
The second group is where a lot of the pain will sit, imo. I've found consumer routers have really bad IPv6 implementations (things like broken prefix delegation, broken firewalling that can't be changed, IPv6 negotiation not working over PPPoE, weird RA settings, etc). The firmware on these kinds of devices is usually not great, and things like hardware acceleration engines in router CPUs are also frequently missing acceleration paths for v6 for things they already accelerate for v4. It will get fixed eventually, but it's going to be a pain point for a lot of years to come.
A small number of people use routers you can buy from Amazon, or in a store.
A really tiny number of people use more professional equipment at home.
The problem is, most IT professionals fall into one of the smaller two groups, so they get more friction than others, and that leads to them having more reluctance to roll out v6 at work, etc.
edit: but this was quite a few years ago, from grepping my IRC logs, somewhere around 2016!
i was struck by an issue in this area a few years ago and i think it was fixed by tuning gai.conf to prefer v4 because there were some repo servers that had broken v6
kek - i too am waiting
Tell that to 45% of the Internet.
Also, half of the bingo items there are intentionally humorous, and if you are taking those items literally (I wouldn't be able to tell, you never listed them out) - congratulations, you are part of the bingo :)