Moving to the new provider seem to have resolved the issues.
Three months of practically unusable Internet service.
Terrastorage got rusty... I got rusty... mumble, mumble...
First attempt to recover from the three month hibernation, brought a new nightly only for Linux architectures.
I'm working on it to gradually restore the service.
I'll keep updating this post so as not to disrupt the peaceful silence of this place.
EDIT 2018-06-14 17:22 (EEST)
One more issue is that the terrastorage nightly status page is unreachable.
It seems that terrastorage has been forgotten and network packets cannot find their way to the site. Checking that too.
So for the time being to get the new Linux nightly, go to the GitHub OoliteProject/nightlies Releases
EDIT 2018-06-15 00:05 (EEST)
Terrastorage is now reachable.
Windows and Mac nightly issues are still under investigation.
EDIT 2018-06-15 18:30 (EEST)
Windows nightly is fixed.
Oolite nightly release has been updated with the Windows binaries.
Mac nightly issues are still under investigation.
EDIT 2018-06-17 11:40 (EEST)
Mac nightly server is in trouble. I escalated this to Jens.
In the meantime, I will try to have Mac-nightly built ad-hoc.
Expect some lag in Mac nightly releases.
EDIT 2018-06-17 18:18 (EEST)
Mac nightly server is reported as fixed for now.
The end-to-end automated process will be verified with the next source code change.
EDIT 2018-06-18 11:26 (EEST)
With the Mac nightly engine back online this case is closed.
<!-- "Yeah, right!", the penguin thought and with a smile on his face, he rushed back to the engine room.
"Was that a wifi adapter in his flipperpit?!? What's he up to, again?!?" Norby asked.
"Well, you know how them geekz are; can't fly with 'em, can't fly without 'em!" Cody replied.
"Let's hope our nightly engines will survive his 'ideas' this time!" Svengali added and a silent sigh escaped his fatigued chest. -->
EDIT 2018-06-27 22:30 (EEST)
<!-- The penguin enters the bridge wearing a blue network cable as a scarf, risking to ridiculously choke himself.
He throws a stare over to the Commanders.
"Gentlemen, T-storage is now riding the µWaves!"
The silver-feathered penguin waddled towards the elevator leading back to the engine room. -->