GVTC Speed Test

This page helps GVTC customers in Texas (Smithson Valley, Boerne, Gonzales) check their internet speed. GVTC is a leader in Fiber-to-the-Home (FTTH), delivering symmetrical gigabit speeds using advanced Calix GigaSpire routers.

Whether you are on the "Fiber Internet" (500 Mbps / 1 Gbps) or a legacy cable plan, this test will confirm if your connection is performing correctly.

How to interpret your GVTC speed result

GVTC Fiber is designed to be symmetrical (same upload and download speed):

Download Speed: On a 1 Gig plan, wired speeds should be around 940 Mbps. Wi-Fi speeds will vary (300-700 Mbps based on device).

Upload Speed: Should match your download speed on Fiber plans. If you see very low upload (e.g., 20 Mbps on a 500 Mbps plan), there may be a fiber line issue.

Ping (Latency): Expect extremely low latency (under 10ms) on fiber, perfect for real-time gaming.

GVTC Internet: Expected Performance

Connection characteristics

Technology: FTTH (Fiber) / Cable / DSL (Legacy).

Modems: Calix GigaSpire BLAST u6 / u4, Arris Cable Modems.

Wi-Fi App: GVTC WiFi App (CommandIQ) for network management.

Typical real-world performance

Wired (Ethernet): 95-100% of plan speed (Symmetrical).

Wi-Fi 6 (5 GHz): Expect 400-800 Mbps near the GigaSpire router.

Wi-Fi 5 (2.4 GHz): Generally capped at 50-80 Mbps.

Common Causes of Slow GVTC Internet

If your speeds are slow, check these common fiber issues:

Solid Red LOS Light: This means "Loss of Signal". The fiber cable outside is likely cut or damaged. You have no internet.

Dirty Optical Connector: Dust on the fiber tip can severely impact light levels, reducing speed (especially upload).

Old Router: Using a non-Gigabit router with a 1 Gig fiber plan will bottleneck speeds at 100 Mbps.

GVTC Router Login – Default IP, Username & Password

To change your Wi-Fi password or manage devices, access the Calix admin panel.

GVTC Router Login Details Information
Router Login IP Address 192.168.1.1 (Calix)
Default Username admin
Default Password Check sticker on device (often unique or 'admin')
Management App GVTC WiFi App

Steps to Login

  1. Ensure you are connected to GVTC Wi-Fi
  2. Open your web browser (Chrome/Edge/Safari)
  3. Type 192.168.1.1 in the address bar
  4. Enter username: admin
  5. Enter password: Check the sticker on the bottom/side of your router

Troubleshooting Gateway Lights

Solid Blue: Internet is connected and functioning normally.

Solid Red (LOS): Loss of Signal (Fiber Cut). Contact support.

Blinking Green (WPS): Router is in pairing mode.

Off (Power): Check power adapter connection.

Wired vs Wi-Fi Testing

To verify if GVTC is delivering the speed you pay for:

Connect a laptop directly to the router using a CAT6 Ethernet cable. If this wired test shows speeds close to your plan (e.g., 900 Mbps), your internet line is fine, and any slowness is due to Wi-Fi limits.

When to contact GVTC Support

Contact GVTC support at 1-800-367-4882 if:

Your LOS light is Solid Red.

Your wired speed test is consistently below 60% of your plan speed.

Your upload speed is drastically lower than your download speed on a Fiber plan.

GVTC Speed Test FAQs

What does a solid Red LOS light mean on my Calix router? A solid Red 'LOS' (Loss Of Signal) light indicates that the router is not receiving an optical signal from GVTC. This is usually due to a cut fiber line or a service outage.

Why is my GVTC upload speed slow? On GVTC Fiber, upload speeds should be symmetrical (same as download). If they are low, it could indicate a damaged fiber patch cable. On Cable/DSL plans, slow upload (10-20 Mbps) is normal.

How do I log into my GVTC Calix router? Open a browser and type 192.168.1.1. The default username is 'admin'. The password is usually printed on the device sticker.

Does GVTC have data caps? Most GVTC fiber plans include unlimited data, but you should verify your specific plan details to be sure.

Compare with Alternative Providers

Compare yours speeds with other Texas ISPs: