Hello, We have HL8548 modems with old firmware (5.5.22.0) and with new (5.5.26.0). We are connecting modems to converters. The converters has connection to the network only using modems with the old firmware (5.5.22.0) version. When we are using modems with the new firmware (5.5.26.0) version, con…

I try to connect via PPP. Modem does not connect to the network and wireshark does not capture anything.

Can you try if linux platform can see anything in wireshark? Or you need to do analysis on raw ppp communication. Btw why don’t you use the old fw? Have you tried the fw between these two fw?

Unfortunately I don’t have Linux. I think, this is new version off HL8548 modem, and them the last downgradable version is 5.5.23.0. When I try to downgrade to version 5.5.22.0, I get an error. Old modems are old HL8548 version, and they have firmware 5.5.22.0, and have successful connection.

You can install vmware to have linux on windows platform You can also try to downgrade with this exe: RHL85xx.5.5.22.0.201603171544.x6250_3.exe Google Drive file.

When I try to downgrade, I get this error: [image] Maybe in new version, for successful connection, I need to enter any additional commands?

I don’t see problem [image] HL8548-G downgrade firmware Legacy HL Series Hi, I’m trying to downgrade the firmware of one HL8548-G module from the version 5.5.24 to the version 5.5.22. I’m using the exe file provided by Sierra but when I run it, I have an error: “Library…

Yes, I know why I can’t downgrade firmware in my modem. Also converter manufacturers has inform my, that they can connect using new version modem to the network, but only very short time, after a few seconds the modem disconnects. Maybe in new version I need to set modem sleep time?, or I need to …

you need to ask the converter manufacturers to see the reason of disconnect. Also suggest you downgrade to make a test.

I will ask the converter manufacturers, maybe they have any connect/disconnect log. I can’t downgrade to version 5.5.22.0, because I get these errors: Target error[0]: ‘Handling package type: CnfBaudChange failed.’ Line: 438 File: main_app.c Target error[1]: ‘Error in EBL.’ Line: 768 File: f…

Do you find connection problem in 5.5.23.0?

Modem HL8548 new firmware (5.5.26.0) connection problems

IoT Modules Legacy HL Series

jyijyi September 1, 2021, 6:05am 21

I don’t see problem

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Modem HL8548 new firmware (5.5.26.0) connection problems

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