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Wired (Ethernet) Troubleshooting
Try the following troubleshooting steps in this order:
- Reboot Turn the computer off and on again.
- Replace the network cablescable(s). Cat-6 is the best option. Cat-5e is acceptable. Cat-5 (without the "e") and lower should not be used.
- Test network connectivity with a different network jackwall port. It is possible that the infrastructure cabling or wall jack port is faulty.
- Replace the network cardTry a USB network adapter. It is possible that the existing network card built-in network adapter is faulty.
Wireless (WiFi) Troubleshooting
- Turn it off and on again. First try disabling/re-enabling WiFi, then restart entire system.
- Remove WiFi network from list of those remembered (forget), then when reconnecting it will be treated as a new network.
- Install all current OS updates (Windows or Mac).
- Disable competing WiFi broadcasts
- Personal routers and access points
- Mobile phone tethering
- Update WiFi drivers from the manufacturer’s support site. Reinstall even not newer than the installed version.
- Update system BIOS (also from manufacturer’s site).
- Create network location
- System Preferences > Network
- Location Dropdown > Edit Locations.
- Add new location by clicking ‘+’
- Call it “MBU”
- Switch to that location by making sure the location drop-down says “MBU”.
- Remove network devices from the list at the left of the dialog that are not needed for connection at MBU.
- Be sure to “Apply” the changes to the dialog.
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