There haven’t been any other such reports that I’m aware off.
If you check your routers current IP where is it supposedly located?
We have seen similar happening before where a Internet Service Provider has used some re-allocated IPs that had originally been issued to a country that was later sanctioned.
eg. A few years ago in 2019 an Internet Service Provider in Spain started using IP’s that had originally been allocated to Iran/Syra/Cuba, and which where still being blocked by some softwares.
Anyone getting allocated one of these IPs found themselves blocked from doing various things, including installing or even running various softwares.
Similar happened again in 2023.
It’s also possible that you are somehow being seen as in Russia, which is currently on many sanctions lists.
I’d try disconnecting your router (just turn the power off) and reconnecting it to see if you get a different IP allocated to the router.