The answer is YES, and NO
It is not possible to connect more than one Speedlinks through the same WIFI Access Point unless that Range Extender is our latest SpeedLAN_X configuration.
This SpeedLAN_X Access point requires your Speedlink to also have a special configuration.
You can return it to the factory fro an upgrade, or we have a document that will help you configure it.
Please raise a support ticket if you want to do this.