# Cannot connect to S7-PLCSimV5 **URL:** \ **Category:** Drivers\ **Created:** [June 22, 2025, 1:00pm UTC](https://community.factoryio.com/t/cannot-connect-to-s7-plcsimv5/4179 "2025-06-22T13:00:21Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![cryptosk58](https://avatars.discourse-cdn.com/v4/letter/c/c2a13f/32.png) [@cryptosk58](https://community.factoryio.com/u/cryptosk58)\ **Post date:** [June 22, 2025, 1:00pm UTC](https://community.factoryio.com/t/cannot-connect-to-s7-plcsimv5/4179/1 "2025-06-22T13:00:21Z")
Hello FactoryIO Team, I’m experiencing difficulties connecting to **PLCsim V5**. I’ve already read similar reports about this issue in the forum, but without a solution. I’ve configured the hardware exactly according to your step-by-step guide. Could you please help me resolve this problem? Regards ![Screenshot 2025-06-22 144912](https://europe1.discourse-cdn.com/flex017/uploads/factoryio/original/1X/e0b41d9ce6eff8b84c066efc4341261c558fb7cb.png) ---
**Author:** ![adriana.silva](https://dub1.discourse-cdn.com/flex017/user_avatar/community.factoryio.com/adriana.silva/32/752_2.png) [@adriana.silva](https://community.factoryio.com/u/adriana.silva)\ **Post date:** [June 23, 2025, 8:13am UTC](https://community.factoryio.com/t/cannot-connect-to-s7-plcsimv5/4179/2 "2025-06-23T08:13:23Z")
Hello @cryptosk58, welcome to the forum! Could you please check what version of PLCSIM V5 you have? Version V5.4 + Sp8+Upd2 is known to have problems connecting with Factory I/O, so we recommend updating PLCSIM to version: V5.4 + Sp8+Upd3. ---
**Author:** ![cryptosk58](https://avatars.discourse-cdn.com/v4/letter/c/c2a13f/32.png) [@cryptosk58](https://community.factoryio.com/u/cryptosk58)\ **Post date:** [July 20, 2025, 1:07pm UTC](https://community.factoryio.com/t/cannot-connect-to-s7-plcsimv5/4179/3 "2025-07-20T13:07:04Z")
Hello, after the update V5.4 + Sp8+Upd3 it worked! thx!!