As stated in another post, I have issues connecting to linustechtips.com through my normal ISP. Loading up floatplane.com works just fine, but the SSO through linustechtips.com fails as well. All HTTP(S) requests seem to be timing out. @colonel_mortis
My ISP is: RWTH Aachen University (AS47610)
Connecting IP Range (for my student dorm): 137.226.236.0/23
I have inquired via ticket to find out, if our universities firewall is causing issues: but they're telling me that everything should be fine. Not sure if there's any additional information that would help... our router is a Cisco Catalyst 4500X, but since it's only routing traffic through to our univiersities data center and their firewall is supposedly fine, it shouldn't cause any issues.
Maybe worth a note: We currently only have a IPv4 subnet, but considering that IPv6's adoption is taking a while, this probably shouldn't cause issues either.