Hello, hstetina ,
We want to inform you:
At the moment we are periodically receiving requests from users to connect such model of tracker with bicycles from Sur Ron. Of those who eventually wrote to us, everyone had a problem with connecting the tracker to a specific server and port.
One of the users contacted the manufacturer of the tracker and, according to him, he was told that specifically that tracker ET200 was intended to work only on the territory of China.
In your case, most likely you will need to replace the ET200 tracker with the ET210, since the ET200 can only work in China.
We recommend that you contact the seller of the bike and tracker, they should be aware of this problem.