Banking App: "something has gone wrong"

[kartman]

Hello, All...

I'm recently moved over from pfSense and I'm now running the latest OPNsense... I have 2x banking apps on my mobile: one works fine but the other will start to log in and then fail with a silly message that "something has gone wrong"

If I turn off WiFi, the app connects fine via mobile data. If I log into the same institution's site via browser, no issue. To be fair, the switch to OPNsense may just be a bad coincidence but I didn't have this issue before very recently.

Any suggestions as to how I might debug and correct?

[Saarbremer]

Hi,

apps are usually very generic in their error messages. This might be a DNS problem, a blocked IP, IPv6 requirements, etc. And as you said: It could also be non-networking related.

I'd check the traffic on OPNsense for unmatched expectations. Which DNS come in? Are there packets blocked when starting the app?

[meyergru]

Do you use zenarmor or suricata? Maybe there is DPI and your bank uses certificate pinning?

[bruen985]

Hello all,

I have exactly the same issue.
It looks like (I'm not completly sure) this problem is present since my update to OPNsense 24.1.8.

One Banking App (DKB) is still working without probs.

The other Banking App (ING DiBa) is completly not starting or sometimes if started "partly" then the message "something has gone wrong" comes after a while loading more content.

Via GMS/ mobile or in other WLANs the Banking App works perfect.

No Introdusion Detection or Web Proxy is active.

Thanks for any ideas!


 

[Wrigleys]

Good evening

I had a similar issue since 24.1.8.
I’m getting strange DNS Resolution issues since the latest Update. After a short period of time, more and more Websites doesn‘t load.

I‘m using Quad9 DNS over TLS inside Unbound and I‘ve listed both IPv4 and IPv6 DNS Resolvers.

After deleting all IPv6 Servers, my DNS issues seems solved (as far as I tested it). This setting was never an issue since a few days.

Hopefully, I can bring some light in this Topic.

Best regards
Wrigleys