---
title: "The Pharos Print App for iOS is not connecting to the server, I can't login."
slug: "the-pharos-print-app-for-ios-is-not-connecting-to-the-server-i-cant-login"
updated: 2025-07-27T20:38:02Z
published: 2025-07-27T20:38:02Z
canonical: "kb.pharos.com/the-pharos-print-app-for-ios-is-not-connecting-to-the-server-i-cant-login"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.pharos.com/llms.txt
> Use this file to discover all available pages before exploring further.

# The Pharos Print App for iOS is not connecting to the server, I can't login.

### Problem:

I am unable to connect the Pharos Print App for iOS to my Print Center server and login.

### Environment:

Pharos Print App for iOS.

Uniprint - Supported Print Center versions for the iOS App.

Blueprint - Supported Print Center versions for the iOS App.

---

### Information:

Apple prohibits the iOS from connecting to just any old server with an SSL Certificate installed that is being used for the SSL connection, Apple has a list of "allowed" CA (Certifying Authroties) that the Servers SSL Certificate needs to be signed by. This means that if your Print Center server is using the default Self-Signed SSL Certificate an iOS device will not connect to it, or any SSL Certificate not signed by an Apple approved CA.

Apple has a handful of KB Articles that point to the list for each iOS version, below is one of them.

[Apples iOS Trusted Root Certificate list](https://support.apple.com/en-us/HT204132)

**Note:** CA is the same as a Trusted Root Certificate.

If you’re still facing any issues, please reach out to Pharos Support and we’ll be happy to assist further.

## Related

- [HOW TO: Diagnose 401.x HTTP errors on IIS](/how-to-diagnose-401x-http-errors-on-iis.md)
- [Introduction to Pharos Print App](/pharos-print-app-help.md)
- [SNMP-based Functions (Device Status, Device Discovery, Collection) Aren't Working](/snmp-based-functions-device-status-device-discovery-collection-arent-working.md)