Issue with packet error on lan-interface

 Hi there,

we have a Sophos XG 115W and there are many many packet errors on the LAN-Interface (Port1) that i can see at the connected port at the HP switch 1820. But we have no packet-loss. The 

As a test i switched the connection mode on both sides from Auto-neogation to 100Mbit-Fullduplex, but it hasn´t changed anything. Of course i changed the network cable and the port too.

Ping from Switch to Sophos XG (Very high response time):

Reply from 192.168.2.252: icmp_seq=0 time=1806 usec.
Reply from 192.168.2.252: icmp_seq=1 time=3109 usec.
Reply from 192.168.2.252: icmp_seq=2 time=1970 usec.
Reply from 192.168.2.252: icmp_seq=3 time=1795 usec.
Reply from 192.168.2.252: icmp_seq=4 time=2048 usec.

Ping from Sophos XG to Switch

PING 192.168.2.251 (192.168.2.251): 1000 data bytes
1008 bytes from 192.168.2.251: seq=0 ttl=64 time=1.323 ms
1008 bytes from 192.168.2.251: seq=1 ttl=64 time=1.257 ms
1008 bytes from 192.168.2.251: seq=2 ttl=64 time=1.343 ms
1008 bytes from 192.168.2.251: seq=3 ttl=64 time=4.490 ms

Can anyone help?

thx