📎 AI Summary:
The user reports their network speed display decreased to 100 Mbps after upgrading to Windows 10, whereas it previously showed 1 Gbps. A responder advises verifying the latest network drivers, checking the NIC settings in Device Manager to ensure speed and duplex are set to auto, and considering replacing the Ethernet cable, as issues with the switch or cable could cause auto-negotiation to downgrade to 100 Mbps. Overall, the thread discusses troubleshooting network speed discrepancies following a Windows upgrade.
The user reports their network speed display decreased to 100 Mbps after upgrading to Windows 10, whereas it previously showed 1 Gbps. A responder advises verifying the latest network drivers, checking the NIC settings in Device Manager to ensure speed and duplex are set to auto, and considering replacing the Ethernet cable, as issues with the switch or cable could cause auto-negotiation to downgrade to 100 Mbps. Overall, the thread discusses troubleshooting network speed discrepancies following a Windows upgrade.
Solution
- Joined
- Jul 4, 2015
- Messages
- 8,995
I would verify you have the latest driver from the computer manufacturers website, not Windows Updates. Also go into Device Manager > Network Adapters > (Right click your NIC) > properties > Advanced and make sure speed and duplex are on "Auto Negotiation". If it is you may want to try replacing your Ethernet cable. The reason being is the default behavior of a switch (the one part of your home router) that can operate at 1Gbps is if there is a problem it will auto negotiate to 100Mbps Half Duplex
