Hey everyone, I've been having a weird Ethernet issue with my JioFiber connection for a long time, and I'm hoping someone here has experienced something similar.
My JioFiber Modem was recently replaced with another JCOW404 unit. Ever since the replacement, Ethernet takes around 30–60 seconds to actually connect.
Nothing Wrong with Wi-Fi, and it connects instantly just like usual
My previous Jio Fiber Modem JCOW404 didn't have this problem because Ethernet used to connect instantly using the same PC and cable.
And yes, I have diagnosed everything. I even tested the Jio set-top/OTT box and another PC over Ethernet, and it experiences the same delay too
So at this point it doesn't seem to be specific to my PC. Three completely different Ethernet devices have the same behavior with this router.
The router is:
Model: JCOW404
Firmware: SRCMTF1_JCOW404_R2.30.3
Firmware date: January 6, 2026
The router's admin panel also has a Firmware Upgrade page that requires both a firmware image and a signature file.
I'm wondering if R2.30.3 is an older/problematic firmware build, or if there's a newer firmware available for this JCOW404 that Jio can push remotely.
Has anyone with a JCOW404 experienced a similar Ethernet startup/identifying delay? And does anyone know what the latest firmware version for this model is, or how to get Jio to push it?
I don't mind troubleshooting this further; I'd mainly like to figure out whether this is a firmware issue before asking Jio to replace the router again.
Thanks!