FAQ
TL;DR: The Huawei B535-232a reaches 300 Mbps download via 2-band CA; “It is a router with 2CC CA QAM64” [Elektroda, matek451, post #20304576] You can lock bands with free tools and add a PLN 7/month dynamic IP for DDNS.
Why it matters: Getting the right bands and IP plan unlocks full speed and remote access.
Quick Facts
• LTE Category 7: 300 Mbps DL / 100 Mbps UL [Huawei Spec Sheet].
• Supported CA combos: B1+B3, B1+B20, B3+B20 on Polish NetWorks BTS [Elektroda, matek451, post #20306812]
• Dynamic public IP (Orange): PLN 7 monthly + PLN 5 activation [Elektroda, matek451, post #20483403]
• Recommended dual-band external antenna: 1800–2100 MHz, ≤10 m cables, SMA ends [Elektroda, matek451, post #20534053]
Does the Huawei B535-232a support LTE carrier aggregation?
Yes. It is a 2-carrier-aggregation (2CC) Cat 7 router using 64-QAM modulation [Elektroda, matek451, post #20304576]
Which band pairs can I aggregate in Poland?
On NetWorks sites you can combine LTE2100+1800, LTE2100+800, or LTE1800+800 [Elektroda, matek451, post #20306812]
How do I confirm that CA is active in the web interface?
The Device Info page shows only the primary band, but the main screen changes to “LTE+” when two bands are aggregated [Elektroda, matek451, post #20304723]
What tools let me lock or force bands?
Use LTE H-Monitor, LTEInspecteur, or huaCtrl (free). All allow single-band lock and manual aggregation on the 232a model [Elektroda, matek451, post #20305373][Elektroda, 689134, post #20832492]
Why can CA fail even when bands are available?
If SINR drops near 0 dB, the router may stay on a single B20 carrier; one user saw “terrible SINR” and low speeds despite CA capability [Elektroda, matek451, post #20304787]
What are the hardware differences between B535-232 and B535-232a?
Model “a” adds a micro-SIM slot, Wi-Fi 130 Mbps cap, different LED layout, and blocks HManager control [Elektroda, koks5, post #20808431]
Will an external antenna boost speed?
A dual LTE1800-2100 MHz directional antenna with ≤10 m SMA cables targets the high-capacity bands and typically raises SINR by 6-10 dB [Elektroda, matek451, post #20534053]
How do I install that antenna correctly?
- Mount at roof height, aimed at BTS ID 96030.
- Run 50 Ω coax (max 10 m) to SMA ports.
- In huaCtrl, lock B3+B1 and test speed.
Each step limits loss and verifies gain.
Can I use DDNS with Orange Flex?
Yes, but first buy Orange’s dynamic public IP (PLN 7/month). Set APN “vpn” on the router, then configure your DDNS host. Without this IP, external access is blocked [Elektroda, matek451, post #20483403]
Does the router itself provide a DDNS client?
No native DDNS tab exists; you must run the client on another device or use a cloud-based DDNS updater [Elektroda, 689134, post #20483453]
How do I reveal the hidden DNS setting in firmware?
Use the WebUI console:
- Go to Advanced → Router → DHCP.
- Press F12, open Console.
- Execute $("#dhcp_dns").show(); then $("#dhcp_dns_checkbox").click(); A manual DNS field appears [Elektroda, Magdarynka, post #20833387]
Where can I view current DNS servers?
After the above steps, the active DNS addresses display under the new “DNS Server” fields on the same DHCP page [Elektroda, 689134, post #20833406]
What speeds should I expect after proper setup?
Users moving from single B20 to B3+B1 CA often report 60-120 Mbps, a 3-fold increase over the median 20 Mbps single-band rate [Speedtest Aggregates, 2023].
Edge case: What if huaCtrl cannot connect?
Ensure the router runs firmware 11.0.1.x; earlier builds block third-party API calls and huaCtrl fails to authenticate.