Cellular modem instability

[PeterDedecker]

Hi,

Recently, I experienced some cellular instability on various BR1 and BR2 devices. Sometimes they tend to try connect to the wrong carrier (might be related to a bug in IMSI readings in 8.5.1 GA) or generally experience issues on certain frequency bands where signal quality is fine but frequent changes between bands occur, especially when 5G NSA bands are joining. When having a 5 year old 4G modem (other brand) next to the Pep (same antennas, even way lower height) the 4G modem has a better connectivity (throughput) than the BR1 connected over both 4G and 5G NSA…

Peplink support is involved and helping, but I wonder if I am the only one with this kind of problems.

[PeterDedecker]

OK, sorry, I should have read this topic as this sounds very recognizable for us, having multiple devices in the field giving troubles lately.

Beta Firmware 8.5.2 is out! -- Send us your favourite one from the release notes

Hi all, The first beta for 8.5.2 is out today! Again the Peplink engineers have been cooking with this one! From adding improvements to download eSIM profiles to the addition of Starlink support for the USB WAN Connections. Agent Adam and me will be going over the release notes soon and we are wondering what the community favourites are. You can read the release notes here: https://download.peplink.com/resources/firmware-8.5.2b01-release-notes.pdf Let us know below what you favourite feature…

[Jiang_Lin]

You are not alone, I have encountered same issue and also opened ticket with support.

My case is Br1 Mini 5G + Max antenna installed outdoor performs worse than Balance 20X LTE-4 Indoor.

[Stephen_McCreary]

Try checking to see if your “modem” firmware is up to date, not to be confused with your “router” firmware. I had an early vintage BR1 Pro 5G that was rather unstable in 5G, but solid on 4G. I followed the procedure at this link and results were game-changing for 5G!

Cellular Firmware Upgrade Process

To upgrade the firmware on the cellular module you will need to navigate to the support.cgi page. This can be done by making a change to the address in the address bar. If you are accessing your device via IC2 from the Remote Web Admin feature, you’ll see something like this: .ic.peplink.com/ra/remote/<SERIAL_NUMBER>/cgi-bin/MANGA/index.cgi The change will be at the very end, the index.cgi, this will need to be changed to support.cgi. It should look like this: .ic.peplink.com/ra/remote/<SERIA…

[PeterDedecker]

Thanks, @Stephen_McCreary. I regularly update modem firmware through the support.cgi page, especially after router firmware upgrade. Latest modem firmware was installed.