VPN Login Failed

[PeterMelis]

Hello, 

could you please help me out with my lab? It is still reserved for 8 coming hours, however i am unable to connect via VPN. 
I am getting VPN Login Failed. 
Once i was connected successfully, however i normally disconnected and when i tried to reconnect a moment later, it didnt work anymore....
I have pod 235. 

Thanks in advance for any help.

[PeterMelis]

so after one hour it worked again. 

However i do not understand, why all the network devices are not reachable, although they appear online in the sandbox.

[root@devbox ~]# arp -na
? (10.10.20.254) at 00:00:0c:9f:f0:0b [ether] on ens192
? (10.10.20.100) at <incomplete> on ens192
? (10.10.20.85) at 00:be:75:f7:de:bc [ether] on ens192
? (10.10.20.80) at <incomplete> on ens192