[Evolution-users] Is this normal?

[Pete Biggs]

On Fri, 2025-10-17 at 19:06 -0700, Van Snyder via evolution-users
wrote:
> On Sat, 2025-10-18 at 02:15 +0100, Pete Biggs wrote:
> > > I think my router is IPv6 enabled. I don't know about the
> > > Spectrum
> > > router ahead of it, and AFAIK I can't log in to it.
> > 
> > Disable IPv6 on your machine to see if it makes a difference to the
> > IMAP speed.
> 
> My Linksys EA8300 router is locked in IPv6. I tried to change it to
> IPv4 but the IPv4 "button" didn't work. I think that means that the
> upstream Spectrum cable modem is locked on IPv6. I don't know how to
> log in to it to try to change it, or whether that's even possible.

I was more thinking of disabling IPv6 on your computer, not the router.
I don't know how to do it on Debian, but there is no doubt lots of info
on the net. I think a method that will work on most modern linux
machines is 

  sudo sysctl -w net.ipv6.conf.eth0.disable_ipv6=1

and replace 'eth0' with whatever your interface is called.  Re-enable
it with 

   sudo sysctl -w net.ipv6.conf.eth0.disable_ipv6=0

You can also test IPv6 connectivity with tools such as 'ping6'.

But remember, this is just a test to eliminate issues - I'm not at all
saying that this is the root of your problems.

P.