Surface Dock keeps disconnecting/reconnecting USB devices with Surface Book 2

It still happens. Before I purchase the surface dock2, my logo g903h works just fine. But after I attach it to my surface dock2, the disconnection issue would happen about 10 min after using it. Update firmware doesn't resolve the issue.

I am having the same problem with and without the dock.  I have a USB mouse plugged into SurfaceDock keyboard and it does it too.

I have this too, it's driving me insane! My SP7 connects fine and stays stable, just my SB2.

Agreed the Surfacedock doesn't supply enough power under load being the issue. "BUT" I have found some sort of a Work Around Fix/Experiment. I work for a company were about 75 of us use Surfacebooks. For the most part, about 75% of the time, everyone is running connected to the Surfacedock. On top of that, half of them are running connected to four 23" monitors without issue. ALL without issue "Except me"!!! 

Sines COVID, I have been working from home using two external 23" monitors & my Surfacebook monitor on/lid up. At times, it was disconnecting  a few times an hour. It was driving me crazy. I have tried allot of the advised work a round fixes. Like most of you, without any continued luck.

I have another work around that allows me to work uninterrupted, which I'll get into later. "BUT" try this, if running (like me) with external monitors and your Surfacebook lid/monitor up, "CLOSE the Surfacebook LID"!! Just run off the external monitors. I get it, sometimes you can't but try it at least as an experiment. It has been a few hours now, without any disconnects. It is acting like it is the Surfacebook monitor that was drawing the most power (from what I am experiencing). Again, this is not a fix. Probably, much like you, I would like to used my Surfacebook webcam. Which I have an external USB webcam lying around. I will try it & report back.

Mind you MICROSOFT, this is completely ridiculous!!! That this post string continues with suggestions & workarounds. All, so we can use our Surfacebook with some form of normalcy. If there was ever a case for a recall of defective product (being the Surfacedock)THIS IS THAT ONE!!!

I also have my USB wired keyboard & mouse plugged into an external powered USB hub, plugged into the only available USB port on Surfacebook. I am afraid to try plugging keyboard & mouse into Surfacedock & test it. After a day or two without issue, I'll try it & report back.

Hopefully this helps some of you regain some form of normalcy, after so many wasted hours of lost productivity.

unfortunately I think it is the Dock.  My USB-C port failed 6 months ago unfortunately and is no longer working at all for charge or output .  The Dock and proprietary connector system is a mess.  I can't believe they kept it for the SB3.  that will stop me from buying it.