[MELSEC iQ F FX5U and MR-JE-_C CC-link]

There is no other connections. Yes, I can ping amplifier.

[MELSEC iQ F FX5U and MR-JE-_C CC-link]

Doesn't have any security settings. It's basic switch, like one on the picture

[MELSEC iQ F FX5U and MR-JE-_C CC-link]

I am using switch. Tried other ports, cables and other switch, nothing change. Connection with switch works when I write to PLC, only doesn't work with amplifier.

[MELSEC iQ F FX5U and MR-JE-_C CC-link]

I already set up everything like in that webcast, except default gateway. Added that and I get the same error

[MELSEC iQ F FX5U and MR-JE-_C CC-link]

I am new to PLC programing, I want to connect FX5U and MR-JE-_C via CC-link.

When I connect FX5U and MR-JE-_C directly everything works, but when I connect them in HUB (I need to use HUB because later I want to connect GOT2000) I am getting error 86.1(network communication error) on amplifier. Previously I set up IPs shown on pictures below, now sometimes works, sometime doesn't work and sometimes works for 30 seconds and I get same error. Did I miss something? I don't know what to try else.