It's seems to be that we have the same issue using SVPN via F5 with version 12.1.2 HF1 and BIG-IP Edge Client on Windows 10 laptops.
In most cases the private IPv4 ip address given by the home router is registered to internal company DNS and the virtual IPv4 ip address provided by the F5 device. In some cases also the IPv6 ip address provided by the ISP from home is registered to internal DNS.
Is this a known issue in this release train?
How to overcome this issue?