XP Guest can ping to internet but browser cannot get websites

[Franz47]

Internet-ADSL-Gateway - Host Windows 10 - Guest on Virtualbox 6.0.10 Windows XP + SP3 working
Host has 1 network card configured NAT and has received IP via D H C P and is shown to be connected.
The only browser available in the newly installed system is IE. When trying to access a website - Page cannot be shown.
Connection problems diagnosis yields:
Error 12157 .......
I have tried different websites on the internet, always same error message.
Accessing my host's gateway webinterface at with guest IE works ok.
Pinging from XP-guest to servers on the internet works also.
I guess the ancient internet explorer in the XP-installation is the problem but I need it only to get newer software installed in the guest system.

Can I make the IE work somehow in the guest?
Any other means to install a newer firefox on the guest to get started?

Cannot post IP addresses of my home network because of forum software restriction

[Franz47]

Problem solved:
I installed last Firefox version for XP and Vista from a USB stick in the host after activating the USB-port
This Firefox displays websites without problems.