I am reaching out regarding an issue I encountered after updating the firmware on my RM520NGL module and router.
Previously, while using an older, buggy firmware, I was able to achieve 5G NR speeds of 150-200Mbps, but the connection was highly unstable, and the router would crash daily. After updating the firmware to the latest versions (RM520NGLAAR03A04M4G_01.202.01.202 for the module and 4.6.4 for the router), I noticed that the device now only connects to LTE, even though 5G NR coverage is available in my area. The positive side is that the system is more stable, and I no longer have to physically reset the router daily. However, the drop to LTE has significantly reduced my internet speed.
I’ve tried basic troubleshooting steps, but the issue persists. Could you please advise on the following:
Is there a known issue with 5G NR connectivity in the latest firmware versions?
Are there any settings or configurations I can adjust to prioritize 5G NR?
If this is a bug, is there an expected firmware update that will address this issue?
I am managing a network for 15 flats, and the combination of stability and 5G NR speed is critical. I would appreciate any help in resolving this issue as soon as possible.
Have you tried using Cell locking? Also, R01 branch for me is much better than R03.
Can you please also tell us what M.2 board are you using since there are some boards that I know from Mcuzone that drops connection even if the modem runs standalone. Also check if the modem receives enough power.
I just bought it one month ago from official Europe GL inet with official charger. I will exchange charger. But it do not solve that issue with 5G network. Is there something to do?
The original charger was 12V, 1.5A. I have replaced it with a 12V, 8.5A power source and also changed the USB cable to one with aluminum cores capable of handling 5A. We’ll see the results.
With GoodCloud, there is another issue. Since I am using a Multi-WAN connection, when the connection route to the cloud is lost, it doesn't recover automatically. You have to delete the connection and reconnect manually, only for it to be lost again, and so on. I ended up disabling it because I suspect it might be causing disconnection problems, along with ZeroTier (which is more likely, as it is currently in beta version).
After restarting 5G using the commands: AT+QNWCFG="nr5g_meas_info",1 AT+QNWCFG="nr5g_meas_info"
the router successfully returned to the 5G NSA signal. However, the router crashed(4 hours later) after the scheduled 3 a.m. restart, and I had to reset it manually. I saved the log file, but it appears there’s nothing significant to see in it.
I have enabled GoodCloud access. It is now in status "The interface is connected, but the Internet can't be accessed with IPv4 protocol." Where I should sent credentials?
@misuzu I thought I had read that the R01 branch was generally provided to resellers / communication vendors, and that R03 is what Quectel recommends for end users. Is that true? If so, I may go back to R01, but GL seems to recommend R03 now.
ETA: I am not using standalone but rather X3000, so this is a bit of a threadjack, sorry.
Theyre recommending R03 since it got patches required to pass certain certifications and telecomm requested fixes. However, these sometimes causes performance issue thats why we found R01 to be more reliable.
One more thing, X3000 has its own modem UI handler for certain settings so it might get affected when switching from R03 to R01 branch due to some commands used by GL, but I dont think that it will cause any major issue. Just make sure to use the latest R01 firmware.
I am a little gun shy because switching firmware between R01 and R03 may have caused me some issues with having multiple modem network interfaces and multiple cellular profiles in mwan3. I am on the latest R03 and will stay here for now.
Mystery solved. O2 changes both the IP address and DNS every 48 hours. However, you are only changing the IP address, which results in no internet access after the change. After a restart, the internet is restored.
