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Network frequently disconnecting

mmerot001
Level 1
Level 1

5 users those who are connected in cisco 2960X switch facing Network frequently disconnection issue, I checked in switch logs but there is no logs regarding this, all the laptop are connected through Docking station, we have checked these docking station as well, I m not thinking 5 users having same hardware issue, so some one help us to fix this issue. In between access switch and system there is a jack panel is that a problem ?

16 Replies 16

aidan_burnett
Level 1
Level 1

I'm having this problem too, did you ever solve it? We've bought dozens of these switches and they all exhibit the same problem.

hello,

i have same problem on different  switch 2960x  . randomly some computer lose connection  and connection come back alone .

no error on port , no problem on traffic , and just that log

Apr 26 11:34:32.257: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/33, changed state to down
Apr 26 11:34:36.853: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/33, changed state to up
Apr 26 11:34:37.853: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/33, changed state to up
Apr 26 11:35:16.729: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/15, changed state to down
Apr 26 11:35:17.736: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/15, changed state to down
Apr 26 11:35:23.053: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/15, changed state to up
Apr 26 11:35:24.056: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/15, changed state to up
Apr 26 11:37:04.236: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/38, changed state to down
Apr 26 11:37:05.239: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/38, changed state to down
Apr 26 11:37:08.148: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down
Apr 26 11:37:09.147: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to down
Apr 26 11:37:11.905: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to up
Apr 26 11:37:12.905: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up
Apr 26 11:37:14.300: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/38, changed state to up
Apr 26 11:37:15.303: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/38, changed state to up
Apr 26 11:37:32.385: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down
Apr 26 11:37:33.399: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to down
Apr 26 11:37:36.227: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to up
Apr 26 11:37:37.226: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to up
Apr 26 11:39:39.411: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/4, changed state to down
Apr 26 11:39:40.414: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/4, changed state to down
Apr 26 11:39:45.049: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/4, changed state to up
Apr 26 11:39:46.049: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/4, changed state to up
Apr 26 11:39:54.955: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/38, changed state to down
Apr 26 11:39:55.969: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/38, changed state to down
Apr 26 11:39:58.793: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/38, changed state to up
Apr 26 11:39:59.796: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/38, changed state to up
Apr 26 11:40:30.336: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/34, changed state to down
Apr 26 11:40:31.343: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/34, changed state to down
Apr 26 11:40:37.575: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/34, changed state to up
Apr 26 11:40:38.579: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/34, changed state to up
Apr 26 11:41:13.638: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/4, changed state to down
Apr 26 11:41:14.638: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/4, changed state to down
Apr 26 11:41:23.681: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/4, changed state to up
Apr 26 11:41:24.680: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/4, changed state to up

we upgrade the ios but  problem is always present.

 

 

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