Hi John Clark,
Regarding your information, your computer may have difficulty in getting IP from DHCP server through extender.
Please try setting manual IP following these steps:
Open Settings from the Start menu.
- Click Network & Internet and select Wi-Fi.
- Select your current Wi-Fi network.
- Click Edit under IP assignment.
- Choose Manual from the drop-down.
- Turn on the IPv4 toggle.
- Enter your IP address, Subnet mask, Default gateway, and Preferred DNS.
- (Optional) Enter an Alternate DNS.
- Click Save to apply changes.
If you have further information, please feel free to let me know.