Are you having the default workgroup WORKGROUP?
There is a strange IP address appended at the end of your error message, and I suspect that is not a local address on your network, so possibly for some reason your phone is searching a strange place for the host lookup even if connected to your home network. You may consult the jcifs.samba.org for messages similar to that and see if you find good advice if you are technically inclined. What phone do you have?
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