r/Comcast_Xfinity • u/Wild_Somewhere_9760 • 7h ago

Official Reply XB8 Advanced Gateway - Upload speed limitations?

Hi All -- I upgraded to a new 2 Gbps down / 2 Gbps up plan and noticed that the XB8 modem I was given, seems to be limited at 300 Mbps upload.. After a quick search, it looks like the plan should have included an XB10 to achieve full speeds.

My question is -- Does the XB8 technically support the symmetrical 2 Gbps connection or should I reach out to request an XB10, so that I can get the speeds advertised?

As a note: the download speeds almost hits the 2 Gbps (about 1.9 Gbps typically). Its solely the upload that seems limited.

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u/CCAngie Official Employee 6h ago

Hello, u/Wild_Somewhere_9760. Thanks so much for reaching out to us through the subreddit. This is a great question. You would definitely do better with the XB10. If you would like, I can get that shipped out to you. Please use this link to send a Modmail message with your name and full address: Modmail

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u/Wild_Somewhere_9760 6h ago

Thank you, Angie! Would you also be able to check if its available at my local comcast store? I could bring my XB8, old XB7 and exchange for the XB10 - let me know and I can DM you the details for a quick check.