I have a problem with my LAN. Everything works fine for some time and then I just lose connection. It stays like that for some time and connection gets back just like that. I really do not understand what is happening here. Have you heard of something similar or do you have some idea how to fix this issue?
This is a strange issue indeed. If I were you I would check cables. Maybe they are bad and losing contact somewhere. Also check your network card. Insert another one in computer and use it for some time. If everything is OK then it means your network card is faulty. At last, scan computer for viruses. They can develop some really weird effects on infected computer