Try to connect to portal.checkmk.com and get a request error. Is the portal currently down?
Same here.
http redirects to https where the tcp connect succeeds but then no further response is being received.
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It’s back working as far as i can tell.
They must have some good monitoring system in place that quickly detected the outage and notified the sysadmins 
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made my day 
so long
@martin.schwarz You know how they say in German:
“Der Schuster hat immer die schlechtesten Schuhe”
Not true in our case, our admins are top notch
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