mrhaav
November 6, 2023, 10:47pm
1
I have OpenWrt 22.03.2 installed on my MF286d and using uqmi.
I never get over 150Mbps even though I have 2 * 20MHz CA in downlink.
The UL is OK, 66 Mbps.
I´m testing with Spedtest on a PC, connected with ethernet cabel to one LAN port.
What can I do to improve the DL speed?
ati
Manufacturer: ZTE CORPORATION
Model: MF286DMODULE
Revision: BD_TELIAMF286DV1.0.0B12
SVN: 12
IMEI: 8667540xxxxxxx
+GCAP: +CGSM
AT+ZNLOCKBAND?
+ZNLOCKBAND: 20080800c5,2000000680380
OK
AT+ZCAINFO?
+ZCAINFO: 338, 3, 11098, 1750, 20.0; 338, 2, 7, 3350, 20.0;
OK
AT+ZRSSI
+ZRSSI: -59,-8,-31,30.0
OK
The base station support:
Band Freq BW
1 2100 10
3 1800 20 + 10
7 2600 20 + 20
8 900 10
20 800 10
28 700 10
Have you rouled out other bottlenecks?
Like ISP cap, BTS congestion?
mrhaav
November 8, 2023, 6:53pm
3
My subscription in unlimited and the base station is unloaded. I get over 600Mbps with my Samsung S21, without 5G.
I don´t know if the Telia branded firmware has any limitation when using it with a non Telia SIMcard.
Is it possible to upgrade the firmware to a generic one?
Never updated the modem but it's possible to do it, see here for explanation (post n.2422):
ZTE MF286D - Openwrt (Page 97) – Hardware – eko.one.pl
The real problem is: you are on Nordic B12 firmware, which is already the last one issued.
mrhaav
November 9, 2023, 7:35pm
6
OK, I have the latest FW.
But, is there no one who has got a higher DL throughput than 150 Mbps?
Here in Italy Is almost impossibile to achieve that Speed with a cat12 device.
B3 is almost always congested as B20.
B7 has reduced coverage.
B1 has reduced bandwidth until 3g will be fully retired.
So I can't help...
Have you tried to see on YouTube? I saw there are a lot of 286d reviews with speedtest mentioned.