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Intermittent connection to router

northbay
Newbie
Posts: 1
Registered: ‎19-01-2021

Intermittent connection to router

Hi,

The connection between my office PC and the router (BT Home Hub 5) has been increasingly intermittent over recent weeks. Other devices have not been affected (including a laptop which is connected through the same switch and powerline network)

Looking at the router's event log, it seems the PC is repeatedly requesting a new lease which the router renews but the PC doesn't see so sends out a new lease request. Sample below.

13:44:14, 19 Jan.(970230.510000) Lease requested
13:44:00, 19 Jan.(970216.690000) Lease for IP 192.168.1.78 renewed by host PC2014 (MAC xxxxxxxxxxxx). Lease duration: 30240 min
13:44:00, 19 Jan.(970216.690000) Device connected: Hostname: PC2014 IP: 192.168.1.78 MAC: xxxxxxxxxxxx. Lease time: 30240 min. Link rate: 1000.0 Mbps
13:44:00, 19 Jan.(970216.600000) Lease requested
13:43:55, 19 Jan.(970212.050000) Lease for IP 192.168.1.78 renewed by host PC2014 (MAC xxxxxxxxxxxx). Lease duration: 30240 min
13:43:55, 19 Jan.(970212.050000) Device connected: Hostname: PC2014 IP: 192.168.1.78 MAC: xxxxxxxxxxxx Lease time: 30240 min. Link rate: 1000.0 Mbps
13:43:55, 19 Jan.(970211.980000) Lease requested
13:43:09, 19 Jan.(970165.870000) Lease for IP 192.168.1.78 renewed by host PC2014 (MAC xxxxxxxxxxxx). Lease duration: 30240 min
13:43:09, 19 Jan.(970165.860000) Device connected: Hostname: PC2014 IP: 192.168.1.78 MAC: xxxxxxxxxxxx Lease time: 30240 min. Link rate: 1000.0 Mbps
13:43:09, 19 Jan.(970165.780000) Lease requested
13:42:46, 19 Jan.(970142.730000) Lease for IP 192.168.1.78 renewed by host PC2014 (MAC xxxxxxxxxxxx). Lease duration: 30240 min
13:42:46, 19 Jan.(970142.730000) Device connected: Hostname: PC2014 IP: 192.168.1.78 MAC: xxxxxxxxxxxx Lease time: 30240 min. Link rate: 1000.0 Mbps
13:42:46, 19 Jan.(970142.660000) Lease requested
13:42:32, 19 Jan.(970128.540000) Lease for IP 192.168.1.78 renewed by host PC2014 (MAC xxxxxxxxxxxx). Lease duration: 30240 min
13:42:32, 19 Jan.(970128.540000) Device connected: Hostname: PC2014 IP: 192.168.1.78 MAC: xxxxxxxxxxxx Lease time: 30240 min. Link rate: 1000.0 Mbps
13:42:32, 19 Jan.(970128.460000) Lease requested
13:42:22, 19 Jan.(970119.040000) Lease for IP 192.168.1.78 renewed by host PC2014 (MAC xxxxxxxxxxxx). Lease duration: 30240 min
13:42:22, 19 Jan.(970119.030000) Device connected: Hostname: PC2014 IP: 192.168.1.78 MAC: xxxxxxxxxxxx Lease time: 30240 min. Link rate: 1000.0 Mbps
13:42:22, 19 Jan.(970118.960000) Lease requested

 

This is confirmed by the DHCP Client event log in the PC:  Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address xxxx.  The following error occurred: 0x79. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.

Not really sure where to begin with this. Could any gurus out there help with the problem?