Attestation missed everyday or every two days

Product and Content ETH2.0 validator
1

Hello
My validator is running fine but sometimes I get notification of attestation missed. (Once everyday or every two days, just on 1 slot)

I don’t think it comes from my internet service provider.
Is it worth investigating more?
How can I troubleshoot that?

Thanks

2

I get the same thing, although less frequent. For several hours every week or so I’ll start to miss attestations. I looked into it and concluded it’s not a big deal so long as it reverts to normal behavior.