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Learn how to navigate the advanced settings of xFi. Learn how to navigate the advanced settings of xFi. Xfinity xFi Network Settings and Advanced Settings The correct MTU or Maximum Transmission Unit can be found using ping. Choose a publicly accessible site like google.com or comcast.net and try values until the response is not fragmented then add 28. Substitute xxxx's for the size of the packet. to see ping's options on a windows pc open a cmd pro As the name implies, MTU refers to the largest data packet that can be carried over your network pipe. MTU is measured in bytes, so a setting of "1600" would equal roughly 1.5 KB per packet. If your MTU is too large for the connection, your computer will experience packet loss or intermittent connection. N OTE: The Maximum Transmission Unit (MTU) of Linksys routers is 1500 . To determine the correct MTU size for your network, you’ll have to do a special ping on the destination you’re trying to go to.
About. This site uses cutting-edge WebRTC technology to check your Internet connection's packet loss, latency, and latency jitter in your browser for free. These problems can all be caused by various similar issues, which hopefully you will be able to find and fix using this easy way to test for them.
Comcast will take a variety of prefixes. The default PD is 64; the Macbook is probably getting a 128-bit NA rather than a PD. Try these settings in DD-WRT's Setup->IPv6 tab to get a working configuration: DHCPv6 with Prefix Delegation Prefix length 64 MTU 1500 Dhcp6c custom disabled Dhcp6s custom disabled Radvd ENABLED About. This site uses cutting-edge WebRTC technology to check your Internet connection's packet loss, latency, and latency jitter in your browser for free. These problems can all be caused by various similar issues, which hopefully you will be able to find and fix using this easy way to test for them.
I've always had issues with SonicWall VPN throughout, but most of my clients have Comcast, so perhaps it is an actual Comcast issue. There are some potential workarounds by checking the MTU if packets going over the tunnel and potentially increasing it. If it's not at 1500 MTU, then packets can be split and may suffer. From poor latency.
Comcast Business Fiber and Metro Ethernet both use an interesting way to get the static IPs to the customer. In my example, the LAN will be 10.1.1.x/24, Comcast will give you two blocks, a 1.2.3.4/30 for routing and a 2.3.4.16/28 for your use as public IP addresses.