Ethernet adapter network connection lost -Autoconfigured route limit h

windows 10 Ver 2004
Frequently getting the event 4205 Autoconfigured route limit has been reached. No further autoconfigured routes will be added until the interface is reconnected.
which results in loss of internet connection. Have to reset the ethernet adapter to overcome the issue.

Actions so far (which haven't helped):-
wifi adapter disabled
Updated realtek driver to latest - 10.43.723.2020
set power management to allow computer to turn off device AND allow this device to wake the computer
disabled fast start
Disabled realtime features of MALWAREBYTES as these seem to causing BSODs when running with NORTON

What causes the event 4205 and how can I prevent these?

TIA

- - - Updated - - -

Should have added to actions that I've run the following and restarted the PC
netsh winsock reset catalog
netsh int ipv4 reset reset.log
netsh int ipv6 reset reset.log

Run the following commands and post the results -

If the issue is happening on IPv4 -

netsh interface ipv4 show route

netsh interface ipv4 show neighbors

If it's IPv6 -

netsh interface ipv6 show route

netsh interface ipv6 show neighbors

Just happened again; Not sure if I'm using IPV6 (how do I tell?)

C:\WINDOWS\system32>netsh interface ipv4 show route

Publish Type Met Prefix Idx Gateway/Interface Name
------- -------- --- ------------------------ --- ------------------------
No Manual 0 0.0.0.0/0 7 192.168.1.1
No System 256 127.0.0.0/8 1 Loopback Pseudo-Interface 1
No System 256 127.0.0.1/32 1 Loopback Pseudo-Interface 1
No System 256 127.255.255.255/32 1 Loopback Pseudo-Interface 1
No System 256 192.168.1.0/24 7 Ethernet
No System 256 192.168.1.15/32 7 Ethernet
No System 256 192.168.1.255/32 7 Ethernet
No System 256 224.0.0.0/4 1 Loopback Pseudo-Interface 1
No System 256 224.0.0.0/4 30 Bluetooth Network Connection 2
No System 256 224.0.0.0/4 7 Ethernet
No System 256 255.255.255.255/32 1 Loopback Pseudo-Interface 1
No System 256 255.255.255.255/32 30 Bluetooth Network Connection 2
No System 256 255.255.255.255/32 7 Ethernet


C:\WINDOWS\system32>
C:\WINDOWS\system32>netsh interface ipv4 show neighbors

Interface 1: Loopback Pseudo-Interface 1


Internet Address Physical Address Type
-------------------------------------------- ----------------- -----------
224.0.0.22 Permanent
224.0.0.251 Permanent
239.255.255.250 Permanent

Interface 7: Ethernet


Internet Address Physical Address Type
-------------------------------------------- ----------------- -----------
192.168.1.1 d0-6e-de-2d-3d-24 Reachable
192.168.1.199 a4-ee-57-e2-64-33 Stale
192.168.1.246 68-37-e9-8d-38-ac Stale
192.168.1.252 68-37-e9-17-7c-80 Stale
192.168.1.255 ff-ff-ff-ff-ff-ff Permanent
224.0.0.22 01-00-5e-00-00-16 Permanent
224.0.0.251 01-00-5e-00-00-fb Permanent
224.0.0.252 01-00-5e-00-00-fc Permanent
239.255.255.250 01-00-5e-7f-ff-fa Permanent
255.255.255.255 ff-ff-ff-ff-ff-ff Permanent

Interface 30: Bluetooth Network Connection 2


Internet Address Physical Address Type
-------------------------------------------- ----------------- -----------
224.0.0.22 01-00-5e-00-00-16 Permanent


C:\WINDOWS\system32>netsh interface ipv6 show route

Publish Type Met Prefix Idx Gateway/Interface Name
------- -------- --- ------------------------ --- ------------------------
No System 256 ::1/128 1 Loopback Pseudo-Interface 1
No System 256 fdaa:bbcc:ddee:0:a4df:2f9b:ce95:c4c1/128 7 Ethernet
No System 256 fdaa:bbcc:ddee:0:e522:19d:6b18:b292/128 7 Ethernet
No System 256 fe80::/64 30 Bluetooth Network Connection 2
No System 256 fe80::/64 7 Ethernet
No Manual 256 fe80::/64 7 fe80::d26e:deff:fe2d:3d24
No System 256 fe80::b4f5:1637:50c1:47a6/128 30 Bluetooth Network Connection 2
No System 256 fe80::e522:19d:6b18:b292/128 7 Ethernet
No System 256 ff00::/8 1 Loopback Pseudo-Interface 1
No System 256 ff00::/8 30 Bluetooth Network Connection 2
No System 256 ff00::/8 7 Ethernet


C:\WINDOWS\system32>
C:\WINDOWS\system32>netsh interface ipv6 show neighbors

Interface 1: Loopback Pseudo-Interface 1


Internet Address Physical Address Type
-------------------------------------------- ----------------- -----------
ff02::c Permanent
ff02::16 Permanent
ff02::fb Permanent
ff02::1:2 Permanent

Interface 7: Ethernet


Internet Address Physical Address Type
-------------------------------------------- ----------------- -----------
fe80::d26e:deff:fe2d:3d24 d0-6e-de-2d-3d-24 Stale (Router)
ff02::1 33-33-00-00-00-01 Permanent
ff02::2 33-33-00-00-00-02 Permanent
ff02::c 33-33-00-00-00-0c Permanent
ff02::16 33-33-00-00-00-16 Permanent
ff02::fb 33-33-00-00-00-fb Permanent
ff02::1:2 33-33-00-01-00-02 Permanent
ff02::1:3 33-33-00-01-00-03 Permanent
ff02::1:ff18:b292 33-33-ff-18-b2-92 Permanent
ff02::1:ff95:c4c1 33-33-ff-95-c4-c1 Permanent

Interface 30: Bluetooth Network Connection 2


Internet Address Physical Address Type
-------------------------------------------- ----------------- -----------
fe80::e522:19d:6b18:b292 00-00-00-00-00-00 Unreachable
ff02::16 33-33-00-00-00-16 Permanent
ff02::fb 33-33-00-00-00-fb Permanent
ff02::1:2 33-33-00-01-00-02 Permanent

- - - Updated - - -

Last incident was temporary loss and didn't need to reset adapter.
Event 4205 was recorded.