I have same issue its only IRQ request that are on 1 core RBD52G-5HacD2HnD 7.11.2 But it was fine for a time till bridged connection restarted and then all load from IRQ move to core 3 and now sometimes i have connections crashing when it hit over 90%... I guess restart might fix it but I do not wan...

I have the same issue and my MK just crashed due it, the app so far i seen do this is also IPFS and spacemesh node, in 3h they made 200+ NAT rule shame on mikrotik to not sort this out on internal level but ask ppl to use stupid scripts to deal with this!!!!!!!!! also advising ppl not to use upnp, i...