I've had this issue as well with Dual 1080 Ti's and I've had this same issue, I've narrowed it down to a few things, try either turning off logs or do something like /logint 6 which sets log interval to 6 seconds instead of the default which is 1, and also limit foreground FPS for EQ to your monitors refresh rate, which for me is 144, And for my boxes I limit background FPS to 61. I've seen this happen more often when I peg the GPU usage, which for some reason even with
MQ2EQWire is still possible. I suspect this has something to do with my resolution being 3840x1080 but who knows. For me, I'm sure it's not a temperature issue or a RAM issue. My CPU maxes out at 63c under load and my GPUs are often no higher than 54-57 with everything loaded, and I've got extra temp sensors to verify these temps. I'll look in on this thread later, but feel free to PM me.
Edit: After reading the posts above I figured I should add some things.
I personally run 7 EQ accounts from a 960 Evo Pro NVMe which is also my system drive, but I run one of my primary alts from an 850 Evo SATA SSD which has almost nothing else active on it.
I'm running 1700x Ryzen non-OCed so 3.4ghz per core 8 core 16 Thread.
My Processor affinity is currently set to give each full access to all cores, but I've tried splitting cores between each of my 8 instances of EQ, which still didn't make it better if anything it made it worse.
As stated above, I run 8 accounts.
I have a Seasonic Power Supply which is rated for 1500w roughly double my pull from the wall wattage during normal usage.
I'm getting clean power from the Solar Power Battery, which as of yet we have not drained completely during a given day.
I am also running a pretty decent quality surge protector from APC.
My Swap file is on the same SSD as 7 of my 8 accounts.
I have not checked Ping, that is a good idea.
Side note, I've run various Diagnostics on my system, as well as reinstalling windows and swapping out almost every piece of hardware the problem still persists even though I have found nothing that indicated that anything major is wrong. I do however have a weird issue where I blue screen every time restart or shut down my computer after I run the game and MQ2 together. I am not sure if that has any bearing on this.
Also, I do not have this freezing issue with any other game, and I don't get the BSOD after playing any other game if EQ/MQ2 hasn't been loaded.