I have figured out, that if a stream has more then one colon after the stream link, my solo2 want play it.
Example:
#SERVICE 1:0:1:BBA:3:601:FFFF0000:0:0:0:http%3a//xxxxxx.net%3a8080/live/xxx/xxx/25650.ts:3sat HD DE:"3sat.de"
This above stream want play because I have this:
25650.ts:3sat HD...