When lag causes a misclick or skipped action. The user isn't disconnected from the client though.
Richard Dunn#35051 commented
The lag has been getting worse lately. I've tried reinstalling the client and still lag.
It sounds like you may need some more troubleshooting advice, please submit at: https://magicspellslingers-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.