NigelS wrote

I have a new Switch TL-SG1024DE. I can connect to it and configure it OK. But when I connect it to the internet router, after about 10 seconds I can no longer connect to its management web interface or with the configuration utility. When I do a continouse ping,
 you can see its response times increase until it is no longer contactable and times out.

 

C:\Users\nigel>ping 192.168.1.122 -t

Pinging 192.168.1.122 with 32 bytes of data:
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3ms TTL=64
Reply from 192.168.1.122: bytes=32 time=154ms TTL=64
Reply from 192.168.1.122: bytes=32 time=324ms TTL=64
Reply from 192.168.1.122: bytes=32 time=448ms TTL=64
Reply from 192.168.1.122: bytes=32 time=672ms TTL=64
Reply from 192.168.1.122: bytes=32 time=973ms TTL=64
Reply from 192.168.1.122: bytes=32 time=1275ms TTL=64
Reply from 192.168.1.122: bytes=32 time=1599ms TTL=64
Reply from 192.168.1.122: bytes=32 time=1841ms TTL=64
Reply from 192.168.1.122: bytes=32 time=2063ms TTL=64
Reply from 192.168.1.122: bytes=32 time=2549ms TTL=64
Reply from 192.168.1.122: bytes=32 time=3139ms TTL=64
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.122:
    Packets: Sent = 32, Received = 29, Lost = 3 (9% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3ms, Maximum = 3139ms, Average = 520ms
Control-C

Hi NigeIS

You can try to remove all the devices that connnected to the switch, then check if can ping the switch normally. If the PC still cannot ping the switch, it should has problem.