Troubleshooting - red lion BT-6821-AT-AC User Manual

If you get a "Reply from xxx.xxx.xxx.xxx: bytes=32 time=xxxms TTL=xxx" response, then your web browser is configured
to use a web proxy which is preventing you from browsing the Internet through the modem. Consult your network
administrator for help on fixing this issue.
Possible cause #4
The cellular account does not allow web access.

Troubleshooting

Certain cellular accounts, particularly those where security is a high concern, do not allow web access. If you are
attempting to test the connection by browsing the Internet, you may not be able to do so because of this account
restriction.
12.3.2 (TCP/IP) You cannot communicate with a computer/device behind the modem
This section is meant for TCP/IP connectivity. If the device is a serial-only device, skip to the next issue.
Possible cause #1
Your cellular carrier is operating a firewall which is blocking your attempts to connect.
Troubleshooting
Certain carriers have a firewall turned on by default that blocks all incoming connections.
3) Open a command prompt window by clicking Start > Run then typing "command" in the Run window
4) Type telnet xxx.xxx.xxx.xxx 6070 where x is the modem's WAN IP as assigned by the carrier
If you do not connect and see a "Welcome to BlueTree Wireless" message, then your carrier is likely blocking incoming
connections. Contact your cellular service provider and ask them to open the TCP and UDP ports you will be using to
access the device.
Possible cause #2
Your computer (from which you are initiating the connection) or network has a firewall blocking outgoing connections.
Troubleshooting
Confirm with your IT technician that no firewall is blocking outgoing connections.
Possible cause #3
You did not perform the appropriate port-forwarding rules on the modem.