Guix Pull SSL Cert Invalid Old PC

[nightowl <nightowl@members.fsf.org>]

I have installed guix sd on an old ibm 32bit laptop (PentiumII), but 
after booting up into the new system, I have trouble running guix pull 
command to update the system store.  It complains that the SSL 
certificate is invalid.

Because of limitations with the 32 bit machine, I had to install the 
system by removing the hard drive and connecting it externally to 
another modern laptop using a usb to ide adapter.  I ran the guix system 
init to install the system onto the hard drive, then placed it back into 
the 32 bit laptop.   Things boot and run ok using the slim login and the 
i3wm window manager, but cannot run the pull command without getting an 
invalid certificate error.

The interesting thing is, if I take the hard drive back out and boot off 
of it using one of my newer computers (I tried this on two of my newer 
computers), I can run the guix pull command and it works fine, the 
certificate registers ok in this case.

Why would the old computer say the certificate is invalid while two of 
my newer computers say it is ok?