Slow 4G Speeds RUTM11

Networking Solutions Issue
1

Hi Please help me,

I am experiencing slow 4G Speeds, below 20Mbps, never more than 79.5mbps.

I have updated to latest stable firmware.

I have tried different APNs, no change.

I’m in Australia,.my prov8der is telstra.

I have tested this data sim in a 10yr old Samsung Galaxy S8 and it showed speeds of 180Mbps.

The spec sheet says that this device is capable of upto 300mbps.

Please see screenshots below of speeds, firmware, Modem and settings.

Screenshot_20260504_214455_Speedtest
Screenshot_20260504_214455_Speedtest1080×2316 204 KB

Screenshot_20260504_215134_Chrome
Screenshot_20260504_215134_Chrome1080×2316 143 KB

Screenshot_20260504_215142_Chrome
Screenshot_20260504_215142_Chrome1080×2316 136 KB

Screenshot_20260504_215208_Chrome
Screenshot_20260504_215208_Chrome1080×2316 184 KB

Screenshot_20260504_215220_Chrome
Screenshot_20260504_215220_Chrome1080×2316 180 KB

Screenshot_20260504_215525_Chrome
Screenshot_20260504_215525_Chrome1080×2316 158 KB

Please help me and let me know if I can provide any further information to assist.

Thank you so much!!

3

Greetings,

Modern phones support faster LTE technologies and different modem architecture than most Teltonika Networks devices as they are made and used for different purposes. Most of the speed discrepancies are due to carrier aggregation (CA). To see how CA and other factors can affect LTE speeds, please refer to the LTE Speed Discrepancies page.

Based on the information I found, the Samsung Galaxy S8 has a LTE Cat 16 modem with support for up to 5 carrier aggregation (5CA), while the RUTM11 uses an LTE Cat 6 modem that can aggregate a maximum of two bands simultaneously.

If you haven’t tried already, you could experiment with band locking (Network → Mobile → Connection) to see how speeds or stability change on specific bands. More guidance on band locking can be found in the sources below:

Best Regards,
Justinas