@szabadi For me ALCATEL IK41VE1 works OK with ORANGE POLAND SIM card.

@screen123 I have finally solved the issue. My modem is online. The key was to understand that modems on the TP-Link list have several sub model/types and only several types are working with ER605v2....

@szabadi I have the same issue and I'm not able to establish connection. It looks that the E3372 modem has several subtypes and not all are supported by ER605. I think that TP-Link should update...

@screen123 I have tested two supported GSM modems and 4 SIMs from different IPS vendors (PLUS, ORANGE, PLAY, T-MOBILE) Non is working on auto neither manual settings After initiation of connection...

@screen123 ... additionally I have noticed that Authentication type config required by ISP is "NONE" but there is no such option in ER605. How can I fix it? ISP APN config:

@Smok Could you please provide detailed model of E3372 which works for you. I have new model E3371-325 and it doesn't work for me.