I'm experiencing persistent problems accessing Handelsbanken online banking when connected to iD Mobile, both through my home 5G broadband and mobile phone.

The issue

Handelsbanken works perfectly when I'm connected to the internet at work, but fails when using iD Mobile (I use 5g internet at home).

I'm receiving two different error messages:

• Mobile banking app: Reports that I'm not connected to the internet, despite having a working internet connection.

• Online banking website: Displays "Problem during log in – Network connection was temporarily lost. Please try logging on again."

All other internet services appear to work normally.

My setup

• Home broadband: 5G router using an iD Mobile SIM.

• Mobile phone is also on iD Mobile.

• Both connections use the iD Mobile network.

Troubleshooting already attempted

• Switched between 4G and 5G.

• Tested through home Wi-Fi.

• Tested using mobile data directly.

• Tested using my phone as a hotspot.

• Tested using Proton VPN to route traffic through a different IP address.

• Confirmed Handelsbanken works normally over a different internet connection at work.

None of these tests resolved the issue when using iD Mobile.

It seems to be the same issue as reported here: