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Universal (RM551E & RM520N)

First-Time Setup & Network Access

Default IP addresses, port configuration, authentication, and guided setup wizard.

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First-Time Setup & Network Access

Once QManager is installed, follow this quick guide to complete initial onboarding and secure your installation.

QManager RM551E Sign-in page screen
RM551E: The sign-in screen you see when opening QManager in a browser.

Default Access IP Addresses#

Deployment SetupDefault IPProtocol / PortDefault Login
RM551E Series (Custom OpenWRT)http://192.168.224.1 (or 192.168.1.1/qmanager/)HTTP :80 / HTTPS :443Uses modem / router root credentials
RM520N-GL Standalone Linuxhttp://192.168.225.1HTTP :80 / HTTPS :443Default user: admin / admin

Initial Setup Wizard#

On first launch, QManager runs a 3-step configuration wizard:

  1. APN Setup: Select your cellular carrier preset (T-Mobile, AT&T, Verizon, Telkomsel, Vodafone, etc.) or enter custom APN credentials.
  2. TTL / Mangling: Enable IPv4 TTL and IPv6 Hop Limit mangling (recommended: 64 or 65) if your plan requires hotspot bypass.
  3. Serial Device Detection: Confirms successful handshake with modem control port (/dev/ttyUSB2 or /dev/mhi_DUN).

Authentication & Security#

QManager employs cryptographically secured cookie sessions with HTTP-only flags and brute-force rate limiting:

  • Sessions expire after 24 hours of inactivity.
  • Failed attempts lock out after 5 tries for 3 minutes.
  • To reset your password on RM520N-GL via terminal:
    Shell
    /usr/lib/qmanager/reset-credentials.sh

Changing Web Port (Avoid 80 Port Conflicts)#

If you are running OpenWRT LuCI on port 80 and wish to run QManager on a dedicated secondary port (e.g. 8080):

Edit /etc/config/uhttpd:

Shell
uci add uhttpd qmanager
uci set uhttpd.qmanager.listen_http='0.0.0.0:8080'
uci set uhttpd.qmanager.home='/www/qmanager'
uci commit uhttpd
/etc/init.d/uhttpd restart

Screens in QManager#

QManager RM551E Pre-login modem overview screen
RM551E: Before signing in, QManager shows a quick overview of connection, signal and temperature.
QManager RM520N Public overview splash screen
RM520N: Before you sign in, the overview page shows carrier, bands, and signal at a glance.
QManager RM551E First-time setup wizard screen
RM551E: The first-time setup wizard walks you through password, network mode, APN, bands and web port.
QManager RM520N Setup wizard screen
RM520N: The first-run wizard asks for a password and offers optional network settings.
QManager RM551E Device access screen
RM551E: Change the web and SSH passwords and the web interface ports.
QManager RM551E Languages screen
RM551E: Choose the interface language and install community translation packs.
QManager RM520N Languages screen
RM520N: Languages switches the interface language and installs community translation packs.
QManager RM520N Login screen
RM520N: Sign in to QManager with the password you set during setup.