No longer able to log into some web based apps on new iMac 2024


I just setup my new iMac 2024, copied stuff from my old iMac and ensured I am on the latest version of Tahoe 26.5.


I use safari to access applications on the web such as banking. Most things are working ok, but a number of apps including banking fail to complete the log in process with an unhelpful error message or else they hang. All the faulty apps work ok on my old machine. Any ideas?

Thanks


iMac 21.5″ 4K, macOS 13.7

Posted on May 14, 2026 6:09 AM

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Posted on May 15, 2026 3:31 AM

An update on my problem with logging into websites on new iMac;

I was put in touch with Apple Support via the supplier of my new computer.They guided me through diagnosis.

Going into Safe Mode cleared the cache & the problem. Now able to log onto all sites via Safari.

The support guy was brilliant & patient.

Thanks for your advice. Please close this call


9 replies
Question marked as Top-ranking reply

May 15, 2026 3:31 AM in response to wavertreelass

An update on my problem with logging into websites on new iMac;

I was put in touch with Apple Support via the supplier of my new computer.They guided me through diagnosis.

Going into Safe Mode cleared the cache & the problem. Now able to log onto all sites via Safari.

The support guy was brilliant & patient.

Thanks for your advice. Please close this call


May 15, 2026 12:02 AM in response to Tesserax

I am not using a VPN.

In all cases I can get to the sites, but log in fails with either a message such as "Technical Problem", hanging or looping round with a message. Firefox & chrome have not solved my problem


I am thinking that something got corrupted during the initial setup/copy from old iMac and therefore I should reset my new machine back to factory settings & start again. What do you think?

Thanks for your response

May 15, 2026 10:17 AM in response to wavertreelass

wavertreelass wrote:
I just setup my new iMac 2024, copied stuff from my old iMac and ensured I am on the latest version of Tahoe 26.5.
I use safari to access —
Most things are working ok, but a number of apps including banking fail to complete the log in process with an unhelpful error message or else they hang.
Going into Safe Mode cleared the cache & the problem. Now able to log onto all sites via Safari.


Good computing wavertreelass ! Appreciate your feedback.



No longer able to log into some web based apps on new iMac 2024

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