Urgenttt

Hi Murat87,
Could you describe it more clearly?  Do you mean that the phone and PC are connected to the switch directly, and then when the phone rings, the network is disconnected?

And where is the gi 0/0/26 connect to?  Can you share the configuration?

There are one computer and one ip phone together on switch's one port. For example on Switch gi0/0/26 port connected to computer that connected to ip phone. When the phone rings network disconnected, also when phone is online network is disconnected.

interface GigabitEthernet0/0/26
port link-type hybrid
voice-vlan 5 enable
port hybrid pvid vlan 68
port hybrid tagged vlan 5
port hybrid untagged vlan 68


Apr 14 2020 01:13:32+03:00 S-BLOK-KAT10 %IFADP/4/PORTDOWNINFO(l)[478]:Slot=1;Interface GigabitEthernet0/0/26 has turned into DOWN state. (Information=Physical state: down, Negotiation: enable, Negotiation complete: no, Local full-duplex(10M: yes, 100M: yes, 1000M: yes), Local half-duplex(10M: no, 100M: no, 1000M: no), Remote full-duplex(10M: no, 100M: no, 1000M: no), Remote half-duplex(10M: no, 100M: no, 1000M: no))
Apr 14 2020 01:13:32+03:00 S-BLOK-KAT10 %IFPDT/4/IF_STATE(l)[479]:Interface GigabitEthernet0/0/7 has turned into DOWN state.

[S-BLOK-KAT10]display voice-vlan cu
Apr 14 2020 00:11:37+03:00 S-BLOK-KAT10 %QOSE/4/CONGESTIONRISK(l)[4]:There is a congestion risk on port GigabitEthernet0/0/26.

Hello,
From your description, it seems that the traffic utilization rate under the interface is relatively high. When using IP phones, the traffic may exceed the threshold. As the priority of voice traffic is higher than that of general data traffic, the packets of the computer loss or even interruption occur. You can check whether there are records about traffic exceeding the threshold in the interface and log.
display interface
display logbuffer

In addition, you can replace the computer or connect the computer to another port to check whether the problem is caused by the computer or the switch port.

Thanks for your interest Popeye. I think problem has been solved for now. One of the switches's second power was off. After that power is on phones and computers run properly.

Thank you for your feedback. Have a nice day.

Hi everyone
Yesterday I said the problem was solved. But now problem begin. Yesterday as I said, problem is same. Could you please help me ?