You Can Join Multiple Internet Connections Together – Like Starlink, Wi-Fi, 4G, 5G, and DSL – with Speedify, to Fix Slack Freezing
A frozen Slack window – nothing clickable, the cursor spinning, a restart the only way out – usually means the app is waiting on data that is not arriving. Slack does not fail gracefully when the internet connection stalls: a weak Wi-Fi signal, a hotspot losing coverage, or an out-of-date Slack app can each leave Slack locked.
Speedify is an app that gives your computer Wi-Fi, 4G/5G cellular data, wired Ethernet, Starlink and other internet connections to use all at once, so Slack is never left waiting on a single one.
The sections below cover the app updates and checks worth trying, and how using Speedify stops Slack freezing again.
Should you have a backup 4G, 5G, Starlink, or cable internet connection?
Yes — every internet connection goes down, including Starlink, which drops for ~34 minutes a day on average. A backup connection from a different provider means one outage never takes you fully offline. The most common options are a 4G/5G cellular hotspot, a cable or DSL line, or a second satellite dish.
4G/5G cellular
Works anywhere. Just a SIM or hotspot — no installation needed.
Learn more →Cable / DSL
Best for fixed locations. Different network, so outages rarely overlap.
Learn more →Second Starlink
Adds redundancy and throughput for remote sites or heavy usage.
Learn more →Speedify bonds any two connections into one — automatic failover, more speed, no dropped calls.
Try Speedify free →Why Slack Freezes and How to Fix It
When Slack freezes, it can be one of the following:
- you do not have the latest version of the app / software. You should update that.
- their servers go down. In this case, a simple check of the Slack status page can confirm.
- you are experiencing slow or unreliable Internet.
The best way to fix Slack freezing is to look at the network you’re connected to. When you have a slow or unreliable Internet connection, your Slack isn’t able to work properly. Sometimes, you may not even realize that you have a Slack connection problem until you try and use the service.
Most often it’s people working while commuting that encounter these issues. That’s because they get stuck on bad WiFi networks. Their laptops and mobile devices don’t know when to switch to another hotspot or connection. If your WiFi connection has a momentary hiccup or your cellular connection fluctuates, some of the flow of those packets gets interrupted. It can take a few moments for the data to catch up.
This results in Slack messages not sending and calls where the audio cuts in and out, where the video lags, and where the audio and video don’t sync properly.
Slack has put together this troubleshooting guide you can check out to fix Slack freezing. Solutions mostly go around clearing your cache and reloading Slack. But wait… there’s a better way to fix Slack connection issues related to your Internet.
Fix Slack Disconnecting with Speedify
Speedify is a bonding VPN that changes the way your computer or mobile device connects to the Internet. Instead of just using one connection, Speedify can combine 2 or more connections at the same time. This instantly increases your connection bandwidth and reliability and provides a better Slack experience. You’ll be able to get work done in any situation, even when traveling!
Speedify also monitors the quality of your Internet connections. When it detects that a signal is weak or that the network is too slow (remember public WiFi?), it will automatically and seamlessly reroute the data through the other working connection(s). And when the “original” connection is back online and reliable, it begins using it again automatically. Say goodbye to Slack freezing!
Done Fixing Slack Freezing? Get All Three for Your Internet Connection: Reliability, Speed and Security
Speedify does more than just manage your Internet connections. It is also a fast bonding VPN that encrypts all of the data you send and receive from your device. This helps keep your private information and conversations secure from digital eavesdroppers and cyber thieves.
Speedify doesn’t just fix your Slack freezing issues disappear. It also makes your Slack app more stable and secure, and improves your overall Internet experience.
Other VPNs slow down your Internet connection. There is no other app that works like Speedify. Only Speedify gives you advanced encryption while also speeding up your Internet connection.
If you are tired of Slack messages not sending, calls dropping or the app freezing, get started with Speedify.
Alex and the Speedify team are always exploring the latest in networking and security technology—like 5G, 6G, WiFi 7, laser and satellite internet—and sharing it in new discussion content across YouTube, TikTok, Instagram, and LinkedIn every week.
Got a tech question? Let's go deeper! Pop into Speedify Office Hours live every Wednesday at 10 AM Eastern. Speedify CEO Alex Gizis and our network engineers are standing by to break down your questions about networks, tech updates, and Speedify features.

Speedify
Get started with Speedify today.
Combine Wi-Fi, 4G/5G cellular, Ethernet, Starlink, and more into one faster, steadier connection. Free to try — no credit card required.
🚀 Speed
Faster uploads and downloads by bonding all your connections at once.
📶 Stability
Automatic failover in under a second when any connection drops.
🔒 Security
AES-256 encryption on every connection, on every network you join.
15M+ downloads worldwide. 75K+ five-star reviews on iOS and Android.



