We have just switched from AT&T to Xfinity, and we are consistantly having problems with browsing the internet. We have no problems watching TV through our Roku (and hence through our internet connection), and the Xfinity speed test suggests we have a good download speed. However on all our devices (windows laptop, macbook, ipad and iphones) web pages consistantly freeze or fail to load. This is the same for wired and wireless connections. Has anyone had any experience of this, and tips for things I can try? We're seriously considering going back to AT&T, but thought I'd try a last ditch effort for a solution here. here.
If you want to troubleshoot this yourself, please see Connection Troubleshooting Tips. If you still need help, please provide Information Requested for Connection-Related Posts.
It's best to use an Ethernet cable connection if possible while checking Internet reliability.
If you can't find the problem or you'd rather have Comcast do the troubleshooting, call them at the phone number on your bill or 1-800-Comcast, or chat with them using one of the "Trouble" options at https://www.comcastsupport.com/chatentry/. If they can't fix the problem remotely, insist they send a tech out to identify the cause and correct it.
If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit unless you have or sign up for their Service Protection Plan (https://www.xfinity.com/support/account/service-protection-plan/, about $6/mo) and keep it for at least 60 days. If the trouble is due to a faulty Comcast modem, eMTA, gateway device, or anything outside your home, you shouldn't be charged.
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