If you want your network to give you what you need, you have to contribute to the network. This means that you constantly have to make clear to yourself, and others, what you can give that have value to other people. Be aware that something of low value to you may have great value to others.
Do not expect to get what you need from people you give to. But trust that what you need will come to you when the time is right and sometimes from unexpected sources.
Also know that you will only get what you need if you communicate your needs. People who want to give can only give if they know what to give. Help your network to give and be ready to receive!