Thank
registered the following lines in the settings file


C:\Users\admin\AppData\Roaming\AmsterdamCoinNode\amsterdamcoin\AmsterdamCoinMain\amsterdamcoin.conf

#addnode=<ip:port>
#Default addnodes.
addnode=116.203.201.9:50020
addnode=91.121.183.173:50020
addnode=144.202.70.143:50020
addnode=74.222.5.189:50020
addnode=173.255.209.39:50020
addnode=176.223.131.60:50020
addnode=213.108.119.84:50020
addnode=80.209.235.55:50020

Does not help :  0 connetions. 0 block
Disabled the firewall, no antivirus, overloaded both the wallet and the computer
Tried on different computers and servers
win7 x64.  winserver 2012R2, win10

Where else to dig?