Troubleshooting

2.2 Troubleshooting

If you mis-enter your Polar Cloud “Email” address or “PIN Code”(Figure 2.7 or Figure 2.9), then upon pressing “DONE”, after the“VERIFYING” screen (Figure 2.10) instead of a success you will seean error screen as shown in Figure 2.16. Press “ACCEPT” atthis error screen to return to the entry screens (Figure 2.6and Figure 2.8) where you should re-enter your Polar Cloudinformation, double-checking that you have entered it correctly.(Note that the Dremel control panel “RETRY” key causes theprinter to attempt the Polar Cloud connection again using thepreviously entered Polar Cloud account information – use “RETRY”only if you think the network connection may have had ablip.)

Figure 2.16: Control panel: account error screen

Tips: Double-check the spelling of your email address andparticularly that you properly entered any special characters; also, ifyou changed your Polar Cloud “PIN Code” in preparation forregistering your Dremel printer, double-check that in the PolarCloud you pressed “SAVE” at the account “SETTINGS” screen aftermaking the change!

With successful connection of your Dremel 3D45 printer to thePolar Cloud, the cloud icon on the printer’s control panel shouldshow either a lightning bolt inside the cloud (meaning thatthe printer is connected to both the Dremel cloud and thePolar Cloud) or a “P” inside the cloud (meaning that theprinter is connected to only the Polar Cloud, not to the Dremelcloud).

If, after entering your Polar Cloud “Email” and “PIN Code” andpressing “DONE”, you do not see the error screen of Figure 2.16 butnevertheless the cloud icon continues to show a “D” inside ratherthan changing to showing a lightning bolt inside, that indicates thatthe printer, although connected to the Dremel cloud (so enjoying anInternet connection) has not been able to connect to the PolarCloud. This likely means that your local network blocks outgoingTCP ports 80 and/or 443; communication with the Polar Cloudrequires use of these ports. In this case, you will probably needto talk to your network or IT administrator to have themopen up access to those ports for your printer. Note that atthe Dremel 3D45 printer’s main menu, pressing “TOOLS” andthen “ABOUT” should display information about your printer, including its MAC address; make a note of the MAC addressas your network administrator may need that information.See for some additionaldiscussion.

If you do not see any cloud icon, even though either an Etherneticon or (sufficiently strong) WiFi icon is displayed, that suggeststhat while the printer is connected to a local network, that localnetwork is not (currently) enjoying an Internet connection. Youcannot connect to Internet cloud-based services (such as the Dremelcloud or Polar Cloud) without a reliable Internet connection: yournetwork or IT administrator may need to investigate your site’sInternet connectivity.

Finally, note that captive portal Internet access (such ascommonly offered at airports, coffee shops, business centers, etc.),will not suffice for a printer’s connection, as the printer cannotnavigate through “accepting” terms of such access.