Similar issue been posted on Three’s community forums so sounds like a Three issue. 

Hi ​@Swiftly50 & ​@rjdx 

Okay, please could you let us know the postcode(s) where this issue happens? Or is this something that happens everywhere you try?

Have you tried forcing the device to 4G instead of 5G?

Tom

Location seems to have no effect in my experience

I have tried forcing 4G over 5G, again this made no difference

​@Tom I’ve supplied a couple of example postcodes earlier in the thread. There have been other areas but I was passing through so don’t know postcodes. 
 

For me, it’s not everywhere. 

Hi ​@Swiftly50 & ​@rjdx 

We’ll shortly send you a Private Message to your Community account, so we can discuss your issue further. 

To access your messages, click your profile picture in the top right hand corner and then click ‘Private Messages’. 

Alternatively, if you are currently logged in, you can use the following link: https://community.idmobile.co.uk/inbox/overview  

We’ll see you there. 

Tom

I’ve been suffering this issues with using IDs mobile network for over a year now trouble with establishing TLS connection over mobile network with some sites.

Google apps affected and a site I help maintain.

Went through all the online guidance about, upgrading, resetting phone etc. Raised call with ID, New ID SIM too the same issue.

Client fails to establish TLS connection over TLS over mobile data connection both 4G & 5G

Fine over wifi

Fine using my wife’s SIM also ID

Currently using 2 different eSIMs in Europe and problem not apparent with either.  Using ID Roaming with either Google Maps just doesn’t work.

Through my work have monitored both ends of a connection, from either end.  Both ends look fine with each end indicating the other end closed the connection.  So something in between not playing ball.

Will be raising another call when get back from holiday and if that doesn’t come to anything… changing providers

Hey there ​@johnsmacd, sorry to hear this. We hope the team can help when you give us a call.

Thanks,

Tyler

So have been in touch with ID Support, my problematic sites are now working where they haven’t before over 4G/5G.  I’d like to be able to say I tested back in the U.K.  BEFORE I contacted ID Support - but I can’t - afterwards however things were working well… where they haven’t for a while.  Here is the gist of what we did which may have had an impact, these instructions relate to an iPhone SE 2022 (iOS 18.6.2)…

Under Settings > Apps > Phone > My Number

• Delete your number using the delete “key”
• Re-enter your number
• Select Save

Under Settings > Apps > Messages

• Disable iMessage (mine was already disabled prefer old school)

Under Settings > General > Transfer or Reset iPhone > Reset

• Use Reset Network Settings option
• Wait for phone to restart

Under Settings > Apps > Messages

• Enable iMessage (now this didn’t work for me coming up with an activation error message, though personally not bothered)

Anyrate after performing the above steps, sites which were previous troublesome for me over mobile data including Google Maps worked much better.  HTH 

Hi ​@johnsmacd 

Glad to hear those steps worked, thanks for sharing for our other users.

Tom

Arghhh… spoke to soon.

Quite likely the above in previous post is not the answer to my conundrum - or even yours 🙄.  After working well for 2 days my issue is back.  Have repeated the above to no avail.  Another chat session with ID Support pending.