Sony A7RIII ILCE-7RM3A Operating Instructions Manual page 638

Select [Auto] or [Manual].
IP Address:
If you are entering the IP address manually, enter the set address.
Subnet Mask/Default Gateway/Primary DNS Server/Second DNS Server:
If you have set [IP Address Setting] to [Manual], enter each address according to your network environment.
Note
To give the registered access point priority in the future, set [Priority Connection] to [On].
Related Topic
Wi-Fi Settings: WPS Push
How to use the keyboard
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