Problem with Santander Online Banking via Tethered Mobile 4G

[Deleted User]

Sounds like a badly designed process by Santander. I seriously doubt the IP address is continuously rotating. More likely they don't like your provider's IP address range.

Have you tried a VPN as they'd only see their IP address? 

username

Who is your mobile network provider?

born_again

sheffieldeagle said:

Thanks guys. Is there a way to track the connection during a session? Still confused why this only happens with Santander.

Cheers

Just what is your set up?

Without knowing it is very hard to answer.

sheffieldeagle

born_again said:

sheffieldeagle said:

Thanks guys. Is there a way to track the connection during a session? Still confused why this only happens with Santander.

Cheers

Just what is your set up?

Without knowing it is very hard to answer.

Hi

I've realised I've said tethered when in fact I mean't to say wifi hotspot.

I'm using my mobile's hotspot via my laptop. I use a Smarty (Three)  sim.

Cheers

username

Tethering and mobile hotspot are the same thing. They just give it different names.
Interesting that your phone provider is Smarty (running on the 3 network).
3 have recently updated their core network and part of the side-effect of this seems to be that 3's network addressing changes more often between page loads - for example if you go to https://whatismyipaddress.com/ and refresh every so often, you get a completely different IP. Perhaps it is a combination of this and Santander's security thinking something is up, as it generally unusual to have a change of IP between page loads.
Certainly I have noticed that since they changed it, I get the Google unusual activity page with a captcha.

whitesmith

yes i am also on three and regularly get google captcha puzzles very annoying

Uxb1

Don't some mobile also use CGNAT?
This is where a single IP address is shared real time between subscribers
In effect the mobile base station back end is swapping back and fro between subscribers on a millisecond basis so only using up one IP address but appearing to service several customers simultaneously on it.
I can see this playing havoc with banking security systems, particularly if the mobile's computers starts to re balance  their loading on some IP address by indeed swapping the ip address between page loads so the number of customers they serve is equally spread amongst each IP address they are using on CGNAT.
(also makes catching cyber crime very difficult as try to legally verify which customer/scammer/etc was using which ip address at which instant is rather problematic)

TraySelect

Interesting discussion - thanks.

My mobile network is Three. These last few weeks, maybe months, have been infuriating with Captcha interrupting [what feels like] all the time. As well as the problems with Santander mobile banking.

So - do I change bank, change mobile provider, or just give up tethering from the hotpsot on my iphone?

TheMightySwordfish

Try with a different Web browser to check on the Captcha issues. 

sheffieldeagle

I've also had the Capcha issue as well. Didn't realise they were related. Nice to know I'm not alone in these issues. Thanks for all the comments guys.

Cheers