Visitor

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5 Messages

Wednesday, April 15th, 2026 12:32 AM

Closed

Slow upload speed after upgrading to 2GB/sec and XB8-T modem-Looking for help

I just upgraded my internet speed to 2GB/sec with a stated 217MB/sec upload speed and the XB8-T modem. I have performed about 30 speed tests today, all close to: download 892Mbps and upload 38.9Mbps on a MacBook Pro M1 Max plugged straight into the modem using ethernet. I upgraded both get the higher upload speed for managing cloud backups for a photography business. Over Wifi the upload speed is measuring 23 Mbps. I am looking for some assistance in achieving that higher upload speed or else these upgrades were for naught.

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Visitor

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5 Messages

3 days ago

Actually, here is what Xfinity broadband facts for my location says:

Speeds Provided with Plan
Typical download speed
2278 Mbps
Typical upload speed
293 Mbps

Official Employee

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2.7K Messages

2 days ago

Thank you for reaching out to our team here. I will be happy to look into any issue with the speed on your service. Have you already run through the troubleshooting steps on the Xfinity app and went through a modem reset? - XfinityJohnG

Expert

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117.4K Messages

1 day ago

@brittnclay @XfinityBenjaminM 

Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.

Visitor

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5 Messages

8 hours ago

An Xfinity technician had to physically connect to the XB8 router and push a new boot file. The Xfinity system was also holding me on my prior plan until he closed the ticket. As soon he closed the ticket, I got the speeds of my plan. 2.4 gbps download and 292mpbs. Speeds varied but were consistently a little lower during the day, but was still getting over 200 mbps. 

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