Receive a "Can't reach this page" message when trying to access the WebUI

[hugo2069]

We have four web gateways in a cluster. We can access each node individually with the exception of one. The User Interface settings are the same as the other nodes. Any help will be greatly appreciated.

[mkutrieba · Accepted solution]

Hello,

at first, what do you exactly mean with cluster, all MWG's are in same central management (share same UI) or are in same HA Proxy cluster setup? Normally, you configure the MWG's to be in the same central management that you only need one UI access to manage all.

you could check the following things:

1. check on affected machine whether 4711 (http) and 4712 (https) are listening via:
#netstat -an| grep 47

1a. if they are not listening, check UI config again and maybe restart the MWG or at least the mwg-ui service via: #service mwg-ui restart

1b. If they are listening, check if they are reachable via network.
Via other MWG you can use telnet: #telnet <ip of affected machine> 4711 (and same for 4712)
On Windows client, telnet might be not available by default, so you must install it or use any other "network/port-check-tool"

2. check for any UI related errors in mwg-core.errors.log and mwg-ui.errors.log under "Troubleshooting" > "Log files" > "mwg-errors"

[hugo2069]

Marcel,

The web gateway was not listening on the ports.  Restarting the ui service did the trick.

Thanks,

Hugo