How Long Does Cellular Failover Take On A TP-Link 4G Router?
Channel: Daniel Rosehill
Date: 2021-08-31

I thought it would be interesting to measure how long it took my TP-Link 4G/LTE router (TL-MR100) to failover to cellular connectivity after simulating an ISP outage by pulling the DSL line out of my ISP's router. 

The answer was:

- About 45 seconds for failover to happen onto backup connectivity
- A little over a minute for the connection to revert back to ISP connectivity after I re-inserted the cabling.

This wasn't a precise test but should reflect an approximation for how much time this should take on a similar networking setup.

By: Daniel Rosehill (danielrosehill.co.il)

== Affiliate links to product(s) mentioned ===

TP-Link TL-MR100 300Mb Wireless N 4G LTE WiFi Router with SIM Slot

https://amzn.to/3BHlMib

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