Accessibility of postfinance.ch
Greetings networkers 😉
For about 3 weeks I have had a really exciting phenomenon that, in my opinion, cannot be explained. I have an XGS-PON Anschluss with Pfsense etc. This Anschluss has been running great for a year and I can do anything and open any page I want. But for the past 3 weeks I haven’t always been able to access postfinance.ch and post.ch. Unfortunately, this is a bit difficult because I have an account with Postfinance.
I can’t reach the two websites via my cell phone via WiFi, but I can reach them without any problem via VPN or 4G. That’s why I assume that it’s at best a Swisscom problem. Interestingly, all other websites work without any problems.
I’ve already rebooted Pfsense 2-3 times but it doesn’t make any difference. There are days when both websites work without any problems.
nslookup postfinance.ch
I have Google and Quad9 stored as DNS on the Pfsense. As written, everything works without problems via VPN. It almost looks to me like my IP is blocked. But it could also be a Swisscom routing problem because I am no longer in the CGNAT and have my own router and an XGS-PON Anschluss. Another problem could be IPv6, which is active for me.
I still have a bit of catching up to do with IPv6 as not everything is properly configured yet…
Anyone have any good ideas?
Thank you very much for your input…