|First, ipconfig /all normally doesn't show any things, the world shouldn't know, because normally it only shows private ip addresses. If there are any public ip addresses, simply change it to e.g. 212.x.x.x or something like that.|
So ok, now, that I know, that there are several network devices connected, it's more interesting, to look at the ipconfig /all, because maybe there are address conflicts or something like that.
Also default gateway and dns server settings are worth to take a look at it.
I wonder, why this happens only, if the Dell PC is also connected.
So maybe, you're researching at the wrong PC.
The original poster should always write the last response !!!
Let us know, if the problem is solved !!!