Alerting thru Grafana 4.1.1

Hi guys am newbie to grafana, although I’ve installed it on an instance and when I try to configure alert and send test it throws me the below error:
t=2017-04-28T14:44:43+0000 lvl=info msg=“Sending notification” logger=alerting.notifier type=slack id=0 isDefault=false
t=2017-04-28T14:44:43+0000 lvl=info msg=“Executing slack notification” logger=alerting.notifier.slack ruleId=0 notification=TestAlert
t=2017-04-28T14:44:43+0000 lvl=eror msg=“Failed to send slack notification” logger=alerting.notifier.slack error=“Post read tcp> read: connection reset by peer” webhook=TestAlert
t=2017-04-28T14:44:43+0000 lvl=eror msg=“Failed to send alert notifications” logger=context userId=1 orgId=1 uname=admin error="Post read tcp> read: connection reset by peer"
t=2017-04-28T14:44:43+0000 lvl=eror msg=“Request Completed” logger=context userId=1 orgId=1 uname=admin method=POST path=/api/alert-notifications/test status=500 remote_addr= time_ms=1ns size=48

###please help out if anybody familiar with this, thanks.

Is your instance behind a proxy? That log shows that the instance is trying to connect to which isn’t the IP of

Yes It is ,how do we fix it if that is stopping it ?

It appears that the proxy is not working properly, you’ll need to sort that out or stop using it.

i mean yah there isn’t a way i could stop using it maybe i should sort that out ? or use some other proxy internal to our company ?