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Where are the MTU settings?

Where are the MTU settings?

Where are the MTU settings?
Where are the MTU settings?
2026-03-14 10:59:32 - last edited 3 weeks ago
Model: Archer NX200  
Hardware Version: V1
Firmware Version: 1.2.0 3.0.0 v60e0.0 Build 250725 Rel.73467n

Hi All,

 

I've been trying to modify my downlink and uplink bandwidth. Google A.I. is adamant there's a setting to change the MTU to suit the SIM carrier O2, but I'm unable to find it (including looking in the Tether App).

Any ideas where to look as I can't seem to find it.

 

Thanks in advance.

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#1
1 Accepted Solution
Re:Where are the MTU settings?-Solution
2026-03-17 06:56:31 - last edited 3 weeks ago

Hello @Mr_Markee-123 ,

Welcome to our community.

 

Regarding Bandwidth Control (QoS): You can manage bandwidth settings through the QoS (Quality of Service) feature on your NX200. Here's how to set it up:
1. Log into the web UI via http://tplinkmodem.net
2. Navigate to Advanced > QoS > Settings > Enable QoS.

3. You can currently only control upload bandwidth on the Archer NX200.

4. Under Advanced, you can adjust the bandwidth priority percentage using the scroll bar
5. Click Add to create QoS rules by device.

 

Regarding MTU Settings: The default is 1500; do not change unless necessary.

Could you please tell us what error messages you encountered while trying to configure it?  Here is the FAQ that will give you some suggestions: No internet connection when the TP-Link 5G/4G Router is working with a SIM card


 

Welcome to Community！ Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.
Recommended Solution
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#2
1 Reply
Re:Where are the MTU settings?-Solution
2026-03-17 06:56:31 - last edited 3 weeks ago

Hello @Mr_Markee-123 ,

Welcome to our community.

 

Regarding Bandwidth Control (QoS): You can manage bandwidth settings through the QoS (Quality of Service) feature on your NX200. Here's how to set it up:
1. Log into the web UI via http://tplinkmodem.net
2. Navigate to Advanced > QoS > Settings > Enable QoS.

3. You can currently only control upload bandwidth on the Archer NX200.

4. Under Advanced, you can adjust the bandwidth priority percentage using the scroll bar
5. Click Add to create QoS rules by device.

 

Regarding MTU Settings: The default is 1500; do not change unless necessary.

Could you please tell us what error messages you encountered while trying to configure it?  Here is the FAQ that will give you some suggestions: No internet connection when the TP-Link 5G/4G Router is working with a SIM card


 

Welcome to Community！ Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.
Recommended Solution
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#2

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