topic Re: Hub 2 ethernet connection disconnecting in My Router

Hub 2 ethernet connection disconnecting

C1 — Tue, 22 Nov 2022 14:43:30 GMT

Hello,

I installed a new Hub 2, and the LAN connection to my computer is constantly disconnecting and reconnecting, several times per minute. Wireless connections seem fairly stable.

I've plugged in my previous router (BT smart hub 1) and the ethernet connection is now stable again.

I've downloaded event logs from the Hub 2, should I post them?

Plusnet have scheduled a engineer visit but I don't know if this would solve anything.

Thanks

Re: Hub 2 ethernet connection disconnecting

bobpullen — Tue, 22 Nov 2022 15:30:25 GMT

What LAN port on the hub is your computer connected to? Note the fourth port is a WAN port and not a LAN port and should therefore not be used to connect local network devices.

Re: Hub 2 ethernet connection disconnecting

C1 — Tue, 22 Nov 2022 15:32:26 GMT

It's not connected to the WAN port, I've tried ports 1, 2 and 3 with the same result.

Thanks

Re: Hub 2 ethernet connection disconnecting

bobpullen — Tue, 22 Nov 2022 15:56:32 GMT

Would be interesting to see the Event Log.

How is your network configured? Any other switches/access points/powerline adapters etc. in use?

Assume the same cable has been used for both the Plusnet hub and the Smarthub 1?

Re: Hub 2 ethernet connection disconnecting

C1 — Tue, 22 Nov 2022 16:21:28 GMT

Same cable, I tried a different cable as well just to rule that out.

The computer is connected directly, there are powerline adapters that serve a TV. I left them switched off and disconnected from the Hub 2 incase they were causing interference. Nothing else connected to the Hub.

I'll post the event log.

Re: Hub 2 ethernet connection disconnecting

C1 — Wed, 23 Nov 2022 12:31:39 GMT

11:33:50, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:33:50, 22 Nov. A device disconnected from Ethernet port 3
11:33:50, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:33:50, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:33:46, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:33:46, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:33:45, 22 Nov. Receive a DHCP request
11:33:44, 22 Nov. A device connected to Ethernet port 3
11:33:44, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:33:41, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:33:41, 22 Nov. A device disconnected from Ethernet port 3
11:33:41, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:33:41, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:33:06, 22 Nov. admin login success from xxx.xxx.x.xxx
11:33:02, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:33:01, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:33:01, 22 Nov. Receive a DHCP request
11:33:00, 22 Nov. Lan IPv6 Neighbour Discovery events: NEIGHBOR_SOLICIT
11:32:59, 22 Nov. A device connected to Ethernet port 3
11:32:59, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:32:57, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:32:57, 22 Nov. A device disconnected from Ethernet port 3
11:32:57, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:32:56, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:32:46, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:32:46, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:32:46, 22 Nov. Receive a DHCP request
11:32:45, 22 Nov. Lan IPv6 Neighbour Discovery events: NEIGHBOR_SOLICIT
11:32:44, 22 Nov. A device connected to Ethernet port 3
11:32:44, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:32:42, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:32:42, 22 Nov. A device disconnected from Ethernet port 3
11:32:42, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:32:41, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:32:24, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:32:23, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:32:23, 22 Nov. Receive a DHCP request
11:32:21, 22 Nov. A device connected to Ethernet port 3
11:32:21, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:32:19, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:32:18, 22 Nov. A device disconnected from Ethernet port 3
11:32:18, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:32:18, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:31:54, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:31:54, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:31:53, 22 Nov. Receive a DHCP request
11:31:52, 22 Nov. A device connected to Ethernet port 3
11:31:52, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:31:49, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:31:49, 22 Nov. A device disconnected from Ethernet port 3
11:31:49, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:31:49, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:29:57, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:29:57, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:29:57, 22 Nov. Receive a DHCP request
11:29:55, 22 Nov. Lan IPv6 Neighbour Discovery events: NEIGHBOR_SOLICIT
11:29:54, 22 Nov. A device connected to Ethernet port 3
11:29:54, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:29:52, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:29:52, 22 Nov. A device disconnected from Ethernet port 3
11:29:52, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:29:51, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:29:06, 22 Nov. Port forwarding rule added via UPnP/TR064. Protocol: TCP, external ports: any->28426, internal ports: 32400, internal client: DESKTOP-XXXXXX
11:24:58, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:24:58, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:24:58, 22 Nov. Receive a DHCP request
11:24:56, 22 Nov. A device connected to Ethernet port 3
11:24:56, 22 Nov. Wire Lan Port 3 up, Speed 100 Mbps
11:24:53, 22 Nov. DHCP device Disconnected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:24:53, 22 Nov. A device disconnected from Ethernet port 3
11:24:53, 22 Nov. Wire Lan Port 3 down, Speed 10 Mbps
11:24:53, 22 Nov. LAN [DEL] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0
11:24:48, 22 Nov. ARP [add] br0(wl0) 192.168.1.250 84:c7:ea:2d:b7:c9
11:24:46, 22 Nov. DHCP device Connected: 192.168.1.250, 84:c7:ea:2d:b7:c9, unknown
11:24:46, 22 Nov. DHCP lease issued 192.168.1.250 to 84:c7:ea:2d:b7:c9 , lease duration is 86400 seconds
11:24:46, 22 Nov. 5G Client associate from 84:c7:ea:2d:b7:c9 (IP=192.168.1.250) RSSI=-62, Rate=433Mbps, host
11:24:46, 22 Nov. LAN [ADD] ARP 192.168.1.250 with 84:c7:ea:2d:b7:c9 from br0(wl0)
11:24:45, 22 Nov. DHCP device Connected: xxx.xxx.x.xxx, 98:40:bb:0a:09:21, DESKTOP-XXXXXX
11:24:43, 22 Nov. LAN [ADD] ARP xxx.xxx.x.xxx with 98:40:bb:0a:09:21 from br0(eth2)
11:24:42, 22 Nov. Receive a DHCP request
11:24:42, 22 Nov. Receive a DHCP request
11:24:39, 22 Nov. Lan IPv6 Neighbour Discovery events: NEIGHBOR_SOLICIT
11:24:39, 22 Nov. A device connected to Ethernet port 3

Moderators Note

Post released from the automatic spam filter

Re: Hub 2 ethernet connection disconnecting

C1 — Wed, 23 Nov 2022 11:24:06 GMT

I've been attempting to post the event log but my posts are being automatically deleted, perhaps it's in the wrong format.

I've attached it as a .txt file

The engineer is scheduled to visit tomorrow, I'm not sure whether to go ahead with the appointment.

Many thanks

Re: Hub 2 ethernet connection disconnecting

RealAleMadrid — Wed, 23 Nov 2022 11:54:14 GMT

@C1 Your missing posts will be going into the automated Spam filter which tends to swallow things for no particular reason. A mod will release them in due course.

Re: Hub 2 ethernet connection disconnecting

C1 — Wed, 23 Nov 2022 12:33:38 GMT

Ah right, I also made a previous thread that will have caught by the spam filter - if any mod reading this could delete it/stop it from being released that would be great.

Moderators Note

Thread removed

Re: Hub 2 ethernet connection disconnecting

bobpullen — Wed, 23 Nov 2022 22:25:37 GMT

So, immediate observation from those logs is that the PC is negotiating at 10/100 speeds when the Hub Two has gigabit (1000) ethernet ports. What sort of cable are you using? Is it Cat-5 or Cat-5e or above? What network card is the PC using? Should it be capable of more than 100mbps?

The last thing I'd ask is whether or not you have any other devices that you could wire directly to the hub? If so, do they experience the same problem? If we can rule out some sort of incompatibility/issue specific to the PC itself then we can move things forward.