Can comcast mess with your ip address?

[billyvinson]

If I own my cable modem/wifi can comcast have a program in their system to mess with people's ip address. I'm on my second modem/wifi and they both do the same thing. I had xfinity modem/wifi with no trouble. Thanks

 

[COLGeek]

What do you mean by "mess with your IP address"? If Comcast is your ISP, they will assign your external IP address. They won't muck around with your internal addresses (those you configure and your router assigns to your devices). What specific issue are you experiencing?

 

[billyvinson]

What do you mean by "mess with your IP address"? If Comcast is your ISP, they will assign your external IP address. They won't muck around with your internal addresses (those you configure and your router assigns to your devices). What specific issue are you experiencing?

 

[billyvinson]

When I leave the range of my self owned modem/router (2nd one, both did the same thing) and then return to in range, it seems to take upto 5 minutes for the router to reconnect to the internet. This didn't happen with the xfinity modem/router.

 

[COLGeek]

Do you mean when you leave your wireless network range and then rejoin the network later you have the delay in re-establishing internet connectivity? If so, what devices are doing this (i.e., laptop, smart phone, etc)? Are you using DHCP to auto-assign IPs or internal static addresses?