Ethernet Ports on XB6 Modem (TG3482G) Limited to 100 Mbps?

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@RHeptner wrote:

I ordered the Gigabit Ethernet Internet Package and the XB6 (Model Number TG3482G) Advanced Gateway from Xfinity, when looking in Gateway>Hardware>LAN Ethernet I see that Ethernet Port 1 shows a connection speed of 100 Mbps. The spec sheet for this modem shows gigabit ethernet ports.

LAN Ethernet Port 1

LAN Ethernet link status: Active

MAC Address: {Removed this as its probably a bad idea to share?}

Connection Speed:100 Mbps

 

When I try the other port, I get the same thing, other than the MAC Address being one digit off...

 

I have completed the following Troubleshooting steps:

• Restarting Modem
• Restarting Computer
• Trying Second Port
• Trying Different Cable
• Updating Ethernet driver on my computer

My computer is an AMD Ryzen 5 2600 on an MSI B450 Tomahawk Motherboard running all of the latest drivers. My Ethernet Cable is 20m of Cat5e, so in theory, the cable shouldn't be a problem.

 

I would appreciate any insight or assistance with my problem.

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What is your computer's ethernet port speed setting?

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@jav6joev wrote:

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@RHeptner wrote:

I ordered the Gigabit Ethernet Internet Package and the XB6 (Model Number TG3482G) Advanced Gateway from Xfinity, when looking in Gateway>Hardware>LAN Ethernet I see that Ethernet Port 1 shows a connection speed of 100 Mbps. The spec sheet for this modem shows gigabit ethernet ports.

LAN Ethernet Port 1

LAN Ethernet link status: Active

MAC Address: {Removed this as its probably a bad idea to share?}

Connection Speed: 100 Mbps

 

When I try the other port, I get the same thing, other than the MAC Address being one digit off...

 

I have completed the following Troubleshooting steps:

• Restarting Modem
• Restarting Computer
• Trying Second Port
• Trying Different Cable
• Updating Ethernet driver on my computer

My computer is an AMD Ryzen 5 2600 on an MSI B450 Tomahawk Motherboard running all of the latest drivers. My Ethernet Cable is 20m of Cat5e, so in theory, the cable shouldn't be a problem.

 

I would appreciate any insight or assistance with my problem.

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What is your computer's ethernet port speed setting?

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1.0 Gps

Can't see your picture.  Is your network adapter's speed/duplex set for auto negotiation or a manual selection?

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@RHeptner wrote:

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It is set to Auto-Negotiation. 

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Do you have the option to choose 1 gigabit?  Worth a try.

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@jav6joev wrote:

Can't see your picture.  Is your network adapter's speed/duplex set for auto negotiation or a manual selection?

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It is set to Auto-Negotiation. 

Have you tried different Cat5E cables?  What about the other ports, same thing?  I don't have any other ideas, maybe someone more familiar with that device or your computer model will jump in.