mara- Posted February 13, 2015 Share Posted February 13, 2015 Hello guys,My cousin recently bought new computer and we have a really strange issue.We live in the same house, different floors, so we share Internet connection. Router is on my floor. Lan cable is going through the wall to his floor. Now the strange thing.His lan cable is working fine on laptop and his old computer, but not on the new computer. But, when we bring the new computer on my floor and try my lan cable his new computer can detect it. I double checked the cable and it's straight-through lan cable.Any idea what's happening here?Cheers ;) Link to comment Share on other sites More sharing options...
RobrPatty Posted February 13, 2015 Share Posted February 13, 2015 Have you connected the cable going thru the wall directly into the modem to see if it will work? Who knows it could be an issue with your router. Link to comment Share on other sites More sharing options...
breachinbleach Posted February 13, 2015 Share Posted February 13, 2015 Try this ,check in bios for lan option to detect cable length, my gigabyte has this. Link to comment Share on other sites More sharing options...
BALTAGY Posted February 14, 2015 Share Posted February 14, 2015 In Ethernet properties > configure > advanced > speed & Duplex try to make it "10 Mbps half duplex" see if it will work, if this works then the cable have a problem that's why it don't work on 100 Mbps or 1 Gbps, you need then to try to change the Connector or the cable it selfIf it didn't work try to update the lan driver and also try to look at the Ethernet slot at the computer and see if some pins damaged or something like thatAlso if you have a tester device try to test your cable, it's numbers from 1 to 8, "1,2,3,6" must be working or the cable will not workSorry i don't know how to explain what i mean correctly Link to comment Share on other sites More sharing options...
mara- Posted February 14, 2015 Author Share Posted February 14, 2015 Have you connected the cable going thru the wall directly into the modem to see if it will work? Who knows it could be an issue with your router.Hm, that's not possible, because modem is in another room. I doubt it's the router, since every other computer works fine. Even his, but on my cable. I tried changing ports.Try this ,check in bios for lan option to detect cable length, my gigabyte has this.I briefly went through options in bios before posting here, and didn't see that option, but I'll check it again.In Ethernet properties > configure > advanced > speed & Duplex try to make it "10 Mbps half duplex" see if it will work, if this works then the cable have a problem that's why it don't work on 100 Mbps or 1 Gbps, you need then to try to change the Connector or the cable it selfIf it didn't work try to update the lan driver and also try to look at the Ethernet slot at the computer and see if some pins damaged or something like thatAlso if you have a tester device try to test your cable, it's numbers from 1 to 8, "1,2,3,6" must be working or the cable will not workSorry i don't know how to explain what i mean correctlyLan driver is updated. I don't have a cable tester, but this cable works on the old computer and on laptop, but not on new computer, and new computer works on mine cable. And we tried changing connectors. Nothing is damaged. I'll check out that option.Cheers ;) Link to comment Share on other sites More sharing options...
mara- Posted February 14, 2015 Author Share Posted February 14, 2015 This is really strange. I used Realtek diagnostic tool and it shows 3 pairs as open and one pair as short, meaning the cable is bad. But it does not make sense how this cable works on other computers.Cheers ;) Link to comment Share on other sites More sharing options...
BALTAGY Posted February 14, 2015 Share Posted February 14, 2015 This is really strange. I used Realtek diagnostic tool and it shows 3 pairs as open and one pair as short, meaning the cable is bad. But it does not make sense how this cable works on other computers.Cheers ;)Did you try to make it 10 half ? Link to comment Share on other sites More sharing options...
mara- Posted February 14, 2015 Author Share Posted February 14, 2015 Yes, but no change. I managed to get it once somehow to show limited connection, and orange led was blinking, but I can't make it like that again.Cheers ;) Link to comment Share on other sites More sharing options...
BALTAGY Posted February 14, 2015 Share Posted February 14, 2015 i think there's a problem in this cable somewhere inside the wall if you can get it out and check it you will see something somewhere if you can't get it out, change it Link to comment Share on other sites More sharing options...
mara- Posted February 14, 2015 Author Share Posted February 14, 2015 Well, I can't think of anything else then cable, so we'll try to change it.Cheers ;) Link to comment Share on other sites More sharing options...
BALTAGY Posted February 14, 2015 Share Posted February 14, 2015 Well, I can't think of anything else then cable, so we'll try to change it.Cheers ;)Let me know what happen when you change it just for the infoAnd also i want to ask strange questions1- how much time you been using this cable2- Is the weather there cold Link to comment Share on other sites More sharing options...
mara- Posted February 14, 2015 Author Share Posted February 14, 2015 I' ll let you know. We are using this cable for years, at least 6 or 7. Currently it's winter, so yes, it is cold, but not in the house. Why that matters?Cheers ;) Link to comment Share on other sites More sharing options...
BALTAGY Posted February 14, 2015 Share Posted February 14, 2015 In my work i deal with alot of cable problems and this strange problem happen with me alotThat i have a cable problem that stop working at night when it's too cold and then start to work at day when weather become better and when you check the cable it self you will not find any kind of problems or damageSo i think it's cable life Link to comment Share on other sites More sharing options...
The Owl Posted February 15, 2015 Share Posted February 15, 2015 I agree with the cable being the problem I would have made one up and swapped it out long ago, if you can't do that they are very cheap on ebay Link to comment Share on other sites More sharing options...
mara- Posted February 16, 2015 Author Share Posted February 16, 2015 Yeah, it was the cable, but this was really strange behaviour. Before we bought new cable, we borrowed LAN card from other cousin. And it worked fine and Realtek diagnostic showed cable as normal, but transfer speed between PC's was terrible, and after few hours that card throw limited connection and stopped working.Now, with the new cable, everything works fine.Thanks everyone.Cheers ;) Link to comment Share on other sites More sharing options...
RobrPatty Posted February 17, 2015 Share Posted February 17, 2015 Glad you got it worked out mara. My bro ended up getting a high end cable for his apartment and his internet speeds boost. Link to comment Share on other sites More sharing options...
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