Yes, it looks like it cannot sync.
MultiBit HD need ports 8333 open so that it can connect to the Bitcoin network.
If you have that port blocked or a firewall is blocking it then you won't be able to connect.
Also, rarely, if you have a bitcoind running locally and have some fancy port forwarding rules that can do the same.
Networking/ firewalls depends very much on your operating system and your local network setup.
Well, it's been working fine for ages, only recently encountered this problem, have used it for 2+ months and there's been no errors at all.
I tried to open the port using Windows Firewall and creating new rules, but don't know what I've done wrong:
https://gyazo.com/3be8ee237eff7881616b4795dc186225