Slow Download Speeds on Telecona TRB500 Compared to Smartphone

dunk · April 6, 2026, 6:04am

I recently purchased a Telecona TRB500 router and inserted my SIM card to test its performance. However, I’ve noticed that the download speed is significantly lower compared to when I use the same SIM card in my smartphone. On my phone, I typically get around 350 Mbps, whereas the router only achieves about 20 Mbps under the same test conditions.

Could you please advise whether it’s possible to improve the router’s download speed? If so, what settings or adjustments would you recommend to help achieve better performance?

Justinas · April 14, 2026, 1:12pm

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. In the bottom of the article, there are some general tips that should help increase the mobile speed on your device.

Best Regards,
Justinas