Meta Tester 5 Agent not run on same network?

 
I have 3 computers 1st one works fine, 2nd and 3rd passed=0 but when I change my 2nd wifi to mobile internet ,"passed" it keeps increasing.

I want to ask Can't we use the same network? I tried fixing the port mismatch but still the same. but if change to other network it work.
 
Nsc S: I have 3 computers 1st one works fine, 2nd and 3rd passed=0 but when I change my 2nd wifi to mobile internet ,"passed" it keeps increasing. I want to ask Can't we use the same network? I tried fixing the port mismatch but still the same. but if change to other network it work.

Make sure the ports don't conflict on your router and that each one is properly configured on your PCs and on your router.

 
Fernando Carreiro #:

Make sure the ports don't conflict on your router and that each one is properly configured on your PCs and on your router.

Thank you.
Reason: