No internet connection on 4 5 G in Europe

[PhilMcCann]

I have just returned for some travel to Europe including Italy, Greece and Spain.  In the absence of Wifi I was able to get 4 or 5G but with no internet connection so couldn't use Google, WhatsApp, etc

Can't understand this and would welcome an explanation and what action I can take to remedy please.

Thanks

***** ****

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[jonsie]

These are some tips to try :

•   Reboot phone.
•   Manually search for a different network
•   If using an iPhone, change data APN to  mobile.o2.co.uk
•   Call customer service to check for any roaming bars
•   Or if you message O2 using the social media links below, they should be able to help you with this

[Enlli]

Simple but often overlooked

Was data roaming turned on in your handset.

Sometimes separate to roaming