Hi,
What is the device you use when you get 25? If you're trying to connect to the same wifi with RUT950 and then share another access point from it - it's normal that the speeds will drop, as the longer connection through 2.4ghz, the more bandwidth you're losing. If there's another way you're connecting them - make sure you give us a topology of your network and then we can discuss this issue.
EB.
