@TK_Liew Any ideas here? Seems kinda weird doesn’t it?
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@John_Coggeshall, can you help to provide a traceroute result from your laptop to 8.8.8.8?
Can you provide screenshots below from your cellular WAN (I hid some cellular-related info) by clicking the cellular WAN IP address? You can PM me the screenshots (with the cellular info).
Screenshot below can be obtained by clicking the engineering data from the screenshot above.
Thanks.
@John_Coggeshall, thanks for the info. Seem like routing is not an issue according to your traceroute result from laptop to 8.8.8.8 when connecting to T-Mobile.
Let’s isolate the problem one by one. I suggest upgrading to the latest cellular firmware version. Below is the step to upgrade it:
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Upgrade your BR1 Pro 5G to this firmware - https://download.peplink.com/firmware/br1c/fw-br1p_br2p_transitp_hd1dp_hd2dp_hd1hw4_hd2hw7-8.3.0s138-build5303.bin.
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After the upgrade, please go support.cgi page - https://[LAN IP]/cgi-bin/MANGA/support.cgi and upgrade the cellular module firmware.
Please verify whether LAN client can be accessed internet after the upgrade. If so, your problem is resolved. Else, please disable a 5G band as below:
If disabling 5G band doesn’t help, I need your help to open ticket and attention it to me for further checking.
Thanks.
Teong,
Upgraded the firmwares as suggested, and disabled the n41 band. Still having the exact same behavior. Will open a support ticket.
In case someone stumbles across this issue in the future thanks to TK I was able to get it resolved!
The problem turned out that my cellular provider (T-Mobile / Mint) was dropping packets that had a TTL value of less than 64. By forcing the router in the cellular settings page to set the TTL to 64 instead of “Auto” (which would have been 63), everything works again.
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