# Physical Reset on PTP850C

**URL:** https://community.cambiumnetworks.com/t/physical-reset-on-ptp850c/88884
**Category:** PTP
**Created:** [October 13, 2022, 2:05pm UTC](https://community.cambiumnetworks.com/t/physical-reset-on-ptp850c/88884 "2022-10-13T14:05:11Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![James\_Mifsud](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/james_mifsud/32/25586_2.png) [@James\_Mifsud](https://community.cambiumnetworks.com/u/James_Mifsud)
#### Post date: [October 13, 2022, 10:35pm UTC](https://community.cambiumnetworks.com/t/physical-reset-on-ptp850c/88884/2 "2022-10-13T22:35:02Z")

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Hello Colin,

There is no factory reset button; If you cannot get into the PTP 850C, you’ll need to connect to the MGNT Port using a SPL-ETH-CBL but this is a Ceragon PN. You’ll find a lot of images in the PTP 850 C E User Guide 12.0 that still use Ceragon IP20 images.

[https://support.cambiumnetworks.com/file/9dbed25cf356da2c43b8a84963b128abd7fa540f](https://support.cambiumnetworks.com/file/9dbed25cf356da2c43b8a84963b128abd7fa540f)

 ![image](https://d1okf4ta8xniw3.cloudfront.net/original/3X/f/b/fb14506509a99c1c6e8abdcd4fbd935516a492e9.png)

However, I’m under the impression a Cambium Networks Protection Splitter Cable is the same.

![image](https://d1okf4ta8xniw3.cloudfront.net/original/3X/3/c/3c4630d306011af0c87bc7de27320c685164e4f8.png)

The IP address of the 850C’s CPU is 192.0.2.1. To connect, you’ll need to setup a new Local Area  
Connection with an IP address as follows:  
◦ IP address: 192.0.2.3  
◦ Subnet mask 255.255.255.240  
◦ No default gateway

Then you’ll connect one end of the cable to the Protection port of the PTP 850 unit, for PTP 850C: The Management/Protection port (P6).

![image](https://d1okf4ta8xniw3.cloudfront.net/original/3X/d/1/d104f1062262593daeb17c371a1644f026a00323.png)

Then connect the other end of the cable to the LAN port on your laptop, open up Google Crome or Microsoft Edge to 192.0.2.1

The system will prompt you for a user name and password, the default user name and password are:

Username: admin  
Password: admin

Click Apply.

Here is also a snippet from a PowerPoint presentation, though I find it not as easy to understand as the instructions I’ve provided above.

 ![image](https://d1okf4ta8xniw3.cloudfront.net/original/3X/b/0/b01298ed083f6b39df8ae31d1eb19db2f93f2e13.jpeg)

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