Keeps disconnecting.

[CastletonSnob]

For some reason, my computer keeps saying that "There is no internet connection". This happened on and off throughout today.
Any suggestions?

[amiga1200]

fwiw...
have you done a full system/router restart?
also, check the nw cables are properly seated in the sockets.
may not be an issue here, but i've been there. tower was moved slightly jarring the nw plug, was getting the same message for that instance.)
...
make sure nothing else is using that ip address at the time.
sorry if it's no help, all the best.

[Lord Valarion]

For some reason, my computer keeps saying that "There is no internet connection". This happened on and off throughout today.
Any suggestions?

Wouldn't hurt to re-install the most current version of the Ethernet or Wireless (which ever applies) drivers from your computer's brands support site
If you don't know your serial number/service tag of your computer (sometimes used to locate the drivers), you can get through command prompt by typing the following

wmic bios get serialnumber

[levi456]

You can do a system restore to bring you back to a point when the internet was working