[Question] [Help] - Disconnected - Failed to connect to instance issue

The failure to login:

2019/02/12 22:34:05 881263578 ac [INFO Client 7148] Async connecting to mel01.login.pathofexile.com:20481
2019/02/12 22:34:05 881263593 d3 [INFO Client 7148] Connected to mel01.login.pathofexile.com in 0ms.
2019/02/12 22:34:22 881280609 cea [DEBUG Client 7148] Got Instance Details from login server
2019/02/12 22:34:22 881280640 d07 [INFO Client 7148] Just before calling client instance session
2019/02/12 22:34:22 881280640 dc [INFO Client 7148] Connecting to instance server at 108.61.227.228:6112
2019/02/12 22:34:43 881301656 164 [DEBUG Client 7148] Connect time to instance server was 0ms
2019/02/12 22:34:43 881301656 3b8 [INFO Client 7148] Abnormal disconnect: Failed to connect to instance

Various instance IPs that I wasn't able to login to while the problem persisted:

2019/02/13 05:14:37 96343 dc [INFO Client 14064] Connecting to instance server at 108.61.227.228:6112
2019/02/13 05:10:28 18416562 dc [INFO Client 14228] Connecting to instance server at 168.1.121.74:6112
2019/02/13 00:54:26 3054015 dc [INFO Client 6496] Connecting to instance server at 168.1.121.78:6112
2019/02/13 03:33:23 12591234 dc [INFO Client 14728] Connecting to instance server at 168.1.121.83:6112
2019/02/13 03:08:25 11093218 dc [INFO Client 1344] Connecting to instance server at 168.1.131.82:6112
2019/02/13 17:12:02 43140859 dc [INFO Client 1396] Connecting to instance server at 168.1.131.87:6112
2019/02/13 03:01:01 10649421 dc [INFO Client 1344] Connecting to instance server at 168.1.131.89:6112