People, m. who had this situation: At work, one computer constantly loses the Internet at lunchtime?

Question

Computer networks

People, m. who had this situation: At work, one computer constantly loses the Internet at lunchtime (it is shown that there is a connection, but there is no packet exchange, and you can’t go to any page, and you can’t work with Internet programs) only rebooting the computer helps, while they say that it used to be like this on all computers, but then someone came, cheated something and everyone stopped having such a phenomenon, but no one knows who came and what they did. Can you tell me something how to fix the problem with the Internet?

Answer 1

The chief accountant pulls the router out of the socket and plugs the kettle into it. If you have the courage, take the teapot from the chief accountant!

Answer 2

Does the problem occur in any phase of the moon?

Answer 3

2 options. or the script in the scheduler weighs. such pranks are often played to create the appearance of work. or the gateway bans the IP specifically for this poppy. re-issuance is made from the free pool and everything further works fine. again, not from a good life

Answer 4

And I would run tracert (or pathping), and see where the packets reach ...

Answer 5

Where do the packages go? In the local network, in the world.
I'll ask in your opinion ... What are Inet programs?

Answer 6

Check for ARP spoofing. (unless it falls off and the locale is normal)

Answer 7

You eat, and he should work? He also leaves to eat)
Yes, honestly, there are many options.
Does it disappear at the same time?

Answer 8

I understand that the system is Windows?
I will not say that I am a big specialist in Windows, but still, maybe something will be useful.
So, if Windows - then you can see what to see.
1) compare issuing the
route PRINT command
when the system is working normally and when it is buggy;
maybe for some reason the routing table is changing
2) compare the network settings in the same way - before and during glitches (perhaps one of the computers or servers initiates some elections in the domain and at the same time the network settings change, or for some reason, the computer itself re-requests a new IP if DHCP is used; in Windows with their level of internal complexity, this does not happen).
In general, I think you need to "dance" from the network and its settings, comparing the states "before" and "during".
It is possible that the matter is not only in the IP level, but maybe something is already "breaking" at the ARP level, at this level you can also "move" a little even under Windows.

Answer 9

if this is not the Stalker_RED option, then the network adapter is turned off for sure because the power saving mode is set, try not to let the user go to lunch))))) or turn on the movie ... if it doesn’t fall off, then this is it