Yes it seems very inconsistent. However, I was able to figure out a way to make it happen. When I tab out of the game and browse the net or even just go afk. There's a high chance that I'll get error 90002 after a while. I done this while logged on a character on the Chaos Data Center as well as my main character on Primal Data Center, both had the same results of getting error 90002 while I was checking stuff on the net(even while doing this post lol).
Tabbing out and/or having a browser open may be causing this issue in some way, but I've also had this same error while doing stuff in-game. So I'm not certain. There seems to be a way to force it to happen but, I can't explain why I get them whilst doing dungeons and trials.
This is my route to the Primal Data Center with a VPN right after the 90002 error. To me it seems okay.
Code:
|------------------------------------------------------------------------------------------|
| WinMTR statistics |
| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
| 10.254.174.1 - 0 | 100 | 100 | 0 | 0 | 0 | 0 |
| 10.254.254.1 - 0 | 100 | 100 | 148 | 149 | 152 | 149 |
| 10.255.250.190 - 0 | 100 | 100 | 149 | 154 | 195 | 150 |
| 23.92.24.2 - 0 | 100 | 100 | 149 | 152 | 222 | 151 |
| 173.230.159.0 - 0 | 100 | 100 | 149 | 160 | 218 | 153 |
|ce-0-18-0-1.r02.snjsca04.us.bb.gin.ntt.net - 0 | 100 | 100 | 151 | 156 | 195 | 151 |
| ae-3.r00.scrmca02.us.bb.gin.ntt.net - 0 | 100 | 100 | 154 | 158 | 202 | 155 |
|xe-0-1-0-1-1.r00.scrmca02.us.ce.gin.ntt.net - 0 | 100 | 100 | 154 | 163 | 301 | 155 |
| 204.2.229.234 - 0 | 100 | 100 | 154 | 168 | 219 | 155 |
| 204.2.229.10 - 0 | 100 | 100 | 154 | 159 | 202 | 154 |
|________________________________________________|______|______|______|______|______|______|
But this graph my VPN provides shows a sharp spike in ping at the same moment I got this 90002 error.
Unfortunately, I can't try this on another PC/Laptop etc. Nor can I attempt the phone suggestion.