https://community.o2.co.uk/t5/Tech-Support/hash-key-not-recognised-for-authorisation/m-p/1789093#M56380 <P>Can't for the life of me think it would be an O2 problem as we would have had many complaints here.</P><P>Try updating your carrier settings. If that does not work try searching on Apple / iPhone forums</P><P>&nbsp;</P><P>&nbsp;</P> Sat, 12 Apr 2025 20:38:15 GMT Enlli 2025-04-12T20:38:15Z https://community.o2.co.uk/t5/Tech-Support/hash-key-not-recognised-for-authorisation/m-p/1789091#M56379 <P><SPAN>Hi. Have tried to sign into my NS&amp;I account but unable to because I need to use the # key to enable authorisation &amp; it isn’t being recognised. Advisors at NS&amp;I have informed me this is a common problem on iPhones &amp; the cause is the “DTMS files”? on the network. Have now been locked out of my account - very annoyed!! Can you enlighten me? Thankyou</SPAN></P> Sat, 12 Apr 2025 20:15:41 GMT https://community.o2.co.uk/t5/Tech-Support/hash-key-not-recognised-for-authorisation/m-p/1789091#M56379 Ardrethol 2025-04-12T20:15:41Z https://community.o2.co.uk/t5/Tech-Support/hash-key-not-recognised-for-authorisation/m-p/1789093#M56380 <P>Can't for the life of me think it would be an O2 problem as we would have had many complaints here.</P><P>Try updating your carrier settings. If that does not work try searching on Apple / iPhone forums</P><P>&nbsp;</P><P>&nbsp;</P> Sat, 12 Apr 2025 20:38:15 GMT https://community.o2.co.uk/t5/Tech-Support/hash-key-not-recognised-for-authorisation/m-p/1789093#M56380 Enlli 2025-04-12T20:38:15Z